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Showing posts with label Hacker attack. Show all posts
protecting sensitive data
Chinese Hackers Cyber Attacks cyber espionage cybercriminal group Cyberthreatm Salt Typhoon Hacks data security Data Theft DHS Hacker attack Hacker group protecting sensitive data

Chinese Hacker Group Salt Typhoon Breaches U.S. National Guard Network for Nine Months

 

An elite Chinese cyber-espionage group known as Salt Typhoon infiltrated a U.S. state’s Army National Guard network for nearly nine months, according to a classified Pentagon report revealed in a June Department of Homeland Security (DHS) memo. The memo, obtained by the nonprofit Property of the People through a freedom of information request, indicates the hackers had deep access between March and December 2024, raising alarms about compromised military or law enforcement data. 

Salt Typhoon has previously been linked to some of the most expansive cyber-intrusions into American infrastructure. This latest revelation suggests their reach was even broader than earlier believed. Authorities are still investigating the full extent of data accessed, including sensitive internal documents, personal information of service members, and network architecture diagrams. The affected state’s identity remains undisclosed. 

The Department of Defense declined to comment on the matter, while a spokesperson from the National Guard Bureau confirmed the breach but assured that the incident did not hinder any ongoing state or federal missions. Investigations are ongoing to determine the scope and potential long-term impact of the breach. 

China’s embassy in Washington did not directly deny the allegations but claimed the U.S. had not provided concrete evidence linking Salt Typhoon to the Chinese government. They reiterated that cyberattacks are a global threat and that China also faces similar risks. 

Salt Typhoon is particularly notorious for its ability to infiltrate and pivot across different networks. In a prior campaign, the group was linked to breaches at major telecom companies, including AT&T and Verizon, where hackers allegedly monitored text messages and calls tied to U.S. political figures, including both Trump and Harris campaigns and Senate Majority Leader Chuck Schumer’s office.

The hybrid structure of the National Guard — functioning under both federal and state authority — may have provided a wider attack surface. According to the DHS memo, the group may have obtained intelligence that could be used to compromise other states’ National Guard units and their local cybersecurity partners. Fourteen state National Guard units reportedly share intelligence with local fusion centers, potentially magnifying the risk. 

In January 2025, the U.S. Treasury Department sanctioned a company in Sichuan believed to be facilitating Salt Typhoon operations for China’s Ministry of State Security. Past incidents have shown that Salt Typhoon can maintain access for years, making complete removal and defense particularly challenging.
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Ransomwares
Cyber Attacks Data Leak data security Data Theft DragonForce DragonForce Ransomware Group Hacker attack Hacking Group Ransomware attack Ransomware group Ransomwares

Belk Hit by Ransomware Attack as DragonForce Claims Responsibility for Data Breach

 

The department store chain Belk recently became the target of a ransomware attack, with the hacking group DragonForce taking responsibility for the breach. The cybercriminals claim to have stolen 156 GB of sensitive data from the company’s systems in early May. 

JP Castellanos, Director of Threat Intelligence at cybersecurity firm Binary Defense, stated with high confidence that DragonForce is indeed behind the incident. The company, based in Ohio, specializes in threat detection and digital forensics. During an investigation of dark web forums on behalf of The Charlotte Observer, Castellanos found that DragonForce had shared samples of the stolen data online. 

In a message directed at Belk, the group stated that its original aim wasn’t to damage the company but to push it into acknowledging its cybersecurity failures. DragonForce claims Belk declined to meet ransom demands, which ultimately led to the data being leaked, affecting numerous individuals. 

Following the breach, Belk has been named in multiple lawsuits. The complaints allege that the company not only failed to protect sensitive personal information but also delayed disclosing the breach to the public. Information accessed by the attackers included names, Social Security numbers, and internal documentation related to employees and their families. 

The cyberattack reportedly caused a complete systems shutdown across Belk locations between May 7 and May 11. According to a formal notice submitted to North Carolina’s Attorney General, the breach was discovered on May 8 and disclosed on June 4. The total number of affected individuals was 586, including 133 residents of North Carolina. 

The stolen files contained private details such as account numbers, driver’s license data, passport information, and medical records. Belk responded by initiating a full-scale investigation, collaborating with law enforcement, and enhancing their digital security defenses. On June 5, Belk began notifying those impacted by the attack, offering one year of free identity protection services. These services include credit and dark web monitoring, as well as identity restoration and insurance coverage worth up to $1 million. 

Despite these actions, Belk has yet to issue a public statement or respond to ongoing media inquiries. DragonForce, identified by experts as a hacktivist collective, typically exploits system vulnerabilities to lock down company networks, then demands cryptocurrency payments. If the demands go unmet, the stolen data is often leaked or sold. 

In Belk’s case, the group did not list a price for the compromised data. Castellanos advised anyone who has shopped at Belk to enroll in credit monitoring as a precaution. Belk, which was acquired by Sycamore Partners in 2015, has been working through financial challenges in recent years, including a short-lived bankruptcy filing in 2021. 

The retailer, now operating nearly 300 stores across 16 southeastern U.S. states, continues to rebuild its financial footing amid cybersecurity and operational pressures.
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Malwares
CVE CVE exploits CVE vulnerability CVEs Cyber Attacks Cyber Threat Intelligence Google GSMA GTIG Hacker attack Malware Attack Malwares

Hackers Exploit End-of-Life SonicWall Devices Using Overstep Malware and Possible Zero-Day

 

Cybersecurity experts from Google’s Threat Intelligence Group (GTIG) have uncovered a series of attacks targeting outdated SonicWall Secure Mobile Access (SMA) devices, which are widely used to manage secure remote access in enterprise environments. 

These appliances, although no longer supported with updates, remain in operation at many organizations, making them attractive to cybercriminals. The hacking group behind these intrusions has been named UNC6148 by Google. Despite being end-of-life, the devices still sit on the edge of sensitive networks, and their continued use has led to increased risk exposure. 

GTIG is urging all organizations that rely on these SMA appliances to examine them for signs of compromise. They recommend that firms collect complete disk images for forensic analysis, as the attackers are believed to be using rootkit-level tools to hide their tracks, potentially tampering with system logs. Assistance from SonicWall may be necessary for acquiring these disk images from physical devices. There is currently limited clarity around the technical specifics of these breaches. 

The attackers are leveraging leaked administrator credentials to gain access, though it remains unknown how those credentials were originally obtained. It’s also unclear what software vulnerabilities are being exploited to establish deeper control. One major obstacle to understanding the attacks is a custom backdoor malware called Overstep, which is capable of selectively deleting system logs to obscure its presence and activity. 

Security researchers believe the attackers might be using a zero-day vulnerability, or possibly exploiting known flaws like CVE-2021-20038 (a memory corruption bug enabling remote code execution), CVE-2024-38475 (a path traversal issue in Apache that exposes sensitive database files), or CVE-2021-20035 and CVE-2021-20039 (authenticated RCE vulnerabilities previously seen in the wild). There’s also mention of CVE-2025-32819, which could allow credential reset attacks through file deletion. 

GTIG, along with Mandiant and SonicWall’s internal response team, has not confirmed exactly how the attackers managed to deploy a reverse shell—something that should not be technically possible under normal device configurations. This shell provides a web-based interface that facilitates the installation of Overstep and potentially gives attackers full control over the compromised appliance. 

The motivations behind these breaches are still unclear. Since Overstep deletes key logs, detecting an infection is particularly difficult. However, Google has shared indicators of compromise to help organizations determine if they have been affected. Security teams are strongly advised to investigate the presence of these indicators and consider retiring unsupported hardware from critical infrastructure as part of a proactive defense strategy.
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Malware Attack
AI Models AI Prompt AI prompt injection attack Cyber Security cybercriminals DNS DNS attacks DNS Hacking DOH DoT Hacker attack Malware Attack

Hackers Use DNS Records to Hide Malware and AI Prompt Injections

 

Cybercriminals are increasingly leveraging an unexpected and largely unmonitored part of the internet’s infrastructure—the Domain Name System (DNS)—to hide malicious code and exploit security weaknesses. Security researchers at DomainTools have uncovered a campaign in which attackers embedded malware directly into DNS records, a method that helps them avoid traditional detection systems. 

DNS records are typically used to translate website names into IP addresses, allowing users to access websites without memorizing numerical codes. However, they can also include TXT records, which are designed to hold arbitrary text. These records are often used for legitimate purposes, such as domain verification for services like Google Workspace. Unfortunately, they can also be misused to store and distribute malicious scripts. 

In a recent case, attackers converted a binary file of the Joke Screenmate malware into hexadecimal code and split it into hundreds of fragments. These fragments were stored across multiple subdomains of a single domain, with each piece placed inside a TXT record. Once an attacker gains access to a system, they can quietly retrieve these fragments through DNS queries, reconstruct the binary code, and deploy the malware. Since DNS traffic often escapes close scrutiny—especially when encrypted via DNS over HTTPS (DOH) or DNS over TLS (DOT)—this method is particularly stealthy. 

Ian Campbell, a senior security engineer at DomainTools, noted that even companies with their own internal DNS resolvers often struggle to distinguish between normal and suspicious DNS requests. The rise of encrypted DNS traffic only makes it harder to detect such activity, as the actual content of DNS queries remains hidden from most monitoring tools. This isn’t a new tactic. Security researchers have observed similar methods in the past, including the use of DNS records to host PowerShell scripts. 

However, the specific use of hexadecimal-encoded binaries in TXT records, as described in DomainTools’ latest findings, adds a new layer of sophistication. Beyond malware, the research also revealed that TXT records are being used to launch prompt injection attacks against AI chatbots. These injections involve embedding deceptive or malicious prompts into files or documents processed by AI models. 

In one instance, TXT records were found to contain commands instructing a chatbot to delete its training data, return nonsensical information, or ignore future instructions entirely. This discovery highlights how the DNS system—an essential but often overlooked component of the internet—can be weaponized in creative and potentially damaging ways. 

As encryption becomes more widespread, organizations need to enhance their DNS monitoring capabilities and adopt more robust defensive strategies to close this blind spot before it’s further exploited.
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Scattered Spider ransomware
airline industry Cyber Attacks cyberattacks on airline FBI Hacker attack Hawaii MFA Palo Alto Networks Scattered Spider Scattered Spider ransomware

Scattered Spider Hackers Target Airline Industry Amid FBI and Cybersecurity Warnings

 

The FBI has issued a new warning about the cybercriminal group known as Scattered Spider, which is now actively targeting the airline industry. Recent cyber incidents at Hawaiian Airlines and Canadian carrier WestJet underscore the growing threat. 

According to the FBI’s advisory released late last week, Scattered Spider is known for using advanced social engineering tactics, often posing as employees or contractors. Their goal is to manipulate IT help desk teams into granting unauthorized access—frequently by requesting the addition of rogue multi-factor authentication (MFA) devices to compromised accounts.  

The group’s typical targets include large enterprises and their third-party service providers. “That puts the entire aviation supply chain at risk,” the FBI noted. Once they gain entry, the hackers typically exfiltrate sensitive information for extortion purposes and sometimes deploy ransomware as part of their attacks. The agency confirmed that it is working closely with industry partners to contain the threat and support affected organizations.  

Hawaiian Airlines reported late last week that it had detected suspicious activity in some of its IT systems. While full flight operations were not disrupted, the airline stated it was taking protective steps. “We’ve engaged with authorities and cybersecurity experts to investigate and remediate the incident,” the company said in a statement, adding that it’s focused on restoring systems and will share further updates as the situation evolves. 

Earlier in June, WestJet disclosed that it had experienced a cybersecurity event, which led to restricted access for certain users. The airline has brought in third-party experts and digital forensic analysts to investigate the breach. 

Although the culprits haven’t been officially named, recent analysis from security firm Halcyon indicates that Scattered Spider has broadened its scope, now targeting not only aviation but also sectors like food production and manufacturing. 

“These attacks are fast-moving and devastating,” Halcyon warned. “They can cripple an entire organization in just a few hours, with impacts on everything from operations to consumer trust.”

Other experts echoed these concerns. Palo Alto Networks’ Unit 42 recently advised aviation companies to be extra cautious, particularly regarding suspicious MFA reset requests and socially engineered phishing attempts.  

Darren Williams, founder and CEO of cybersecurity company BlackFog, emphasized the high value of the airline sector for cybercriminals. “Airlines manage immense volumes of sensitive customer data, making them an extremely attractive target,” he said. “With international travel surging, attackers are exploiting this pressure point.” 

Williams added that the disruptions caused by such attacks can ripple across the globe, affecting travelers, business continuity, and public confidence. “These incidents show that airlines need to invest more heavily in cybersecurity infrastructure that can protect passenger data and maintain operational integrity.”
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North Korea cyberattacks
Crypto cryptocurrency cryptocurrency hacks cryptocurrency scam cryptocurrency theft cryptocurrency wallet Cyber Attacks Hacker attack North Korea North Korea cyberattacks

North Korea-Linked Hackers Behind $2.1 Billion in Crypto Theft in Early 2025

 

A new report from blockchain analytics firm TRM Labs reveals that hackers stole an unprecedented $2.1 billion in cryptocurrency during the first half of 2025—marking the highest amount ever recorded for a six-month period. A staggering 70% of the total, or around $1.6 billion, has been attributed to cybercriminal groups sponsored by North Korea. 

According to TRM Labs’ “H1 2025 Crypto Hacks and Exploits” report, this figure surpasses the previous record set in 2022 by 10%, pointing to an escalating trend in high-stakes cybercrime. The report also emphasizes how North Korea has solidified its role as the leading state-backed threat actor in the cryptocurrency ecosystem.  

“These thefts are not just criminal—they’re tools of statecraft,” the report states, highlighting how stolen crypto plays a strategic role in funding the sanctioned regime’s national objectives, including its controversial weapons program. 

Much of this year’s unprecedented losses stem from a single massive incident: the $1.5 billion hack targeting Ethereum and related assets held by the crypto exchange Bybit in February. This attack is being considered the largest theft in the history of the cryptocurrency sector.  

Safe, a provider of multi-signature wallet solutions, traced the breach back to a compromised laptop belonging to one of its senior developers. The device was reportedly infected on February 4 after interacting with a malicious Docker project. The infiltration ultimately allowed attackers to gain unauthorized access to private keys.  

Both U.S. law enforcement and TRM Labs have linked the Bybit attack to North Korean hackers, aligning with prior assessments that the regime increasingly relies on crypto theft as a state-funded operation. 

This event drastically skewed the average size of crypto heists for 2025 and emphasized the changing nature of these attacks—from purely profit-driven motives to broader geopolitical strategies. 

TRM Labs noted that 80% of all crypto losses in 2025 were due to infrastructure breaches, with attackers exploiting vulnerabilities in systems that store private keys and seed phrases—essential components in controlling digital wallets. 

Analysts warn that such incidents signal a shift in the threat landscape. “Crypto hacking is becoming less about financial gain and more about political symbolism or strategic advantage,” TRM concluded. 

As the year continues, security experts urge crypto platforms and users to enhance infrastructure protection, especially against sophisticated, nation-backed threats that blur the line between cybercrime and cyberwarfare.
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NSA
Bank Security Banking Security CISA Cyber Security cybersecurity concerns Financial Institutions Hacker attack Iran hackers Iran-based hacker group Iranian cyber attack NSA

Iranian Hackers Threaten More Trump Email Leaks Amid Rising U.S. Cyber Tensions

 

Iran-linked hackers have renewed threats against the U.S., claiming they plan to release more emails allegedly stolen from former President Donald Trump’s associates. The announcement follows earlier leaks during the 2024 presidential race, when a batch of messages was distributed to the media. 

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) responded by calling the incident “digital propaganda,” warning it was a calculated attempt to discredit public officials and mislead the public. CISA added that those responsible would be held accountable, describing the operation as part of a broader campaign by hostile foreign actors to sow division. 

Speaking virtually with Reuters, a hacker using the alias “Robert” claimed the group accessed roughly 100 GB of emails from individuals including Trump adviser Roger Stone, legal counsel Lindsey Halligan, White House chief of staff Susie Wiles, and Trump critic Stormy Daniels. Though the hackers hinted at selling the material, they provided no specifics or content. 

The initial leaks reportedly involved internal discussions, legal matters, and possible financial dealings involving RFK Jr.’s legal team. Some information was verified, but had little influence on the election, which Trump ultimately won. U.S. authorities later linked the operation to Iran’s Revolutionary Guard, though the hackers declined to confirm this. 

Soon after Trump ordered airstrikes on Iranian nuclear sites, Iranian-aligned hackers began launching cyberattacks. Truth Social, Trump’s platform, was briefly knocked offline by a distributed denial-of-service (DDoS) attack claimed by a group known as “313 Team.” Security experts confirmed the group’s ties to Iranian and pro-Palestinian cyber networks. 

The outage occurred shortly after Trump posted about the strikes. Users encountered error messages, and monitoring organizations warned that “313 Team” operates within a wider ecosystem of groups supporting anti-U.S. cyber activity. 

The Department of Homeland Security (DHS) issued a national alert on June 22, citing rising cyber threats linked to Iran-Israel tensions. The bulletin highlighted increased risks to U.S. infrastructure, especially from loosely affiliated hacktivists and state-backed cyber actors. DHS also warned that extremist rhetoric could trigger lone-wolf attacks inspired by Iran’s ideology. 

Federal agencies remain on high alert, with targeted sectors including defense, finance, and energy. Though large-scale service disruptions have not yet occurred, cybersecurity teams have documented attempted breaches. Two groups backing the Palestinian cause claimed responsibility for further attacks across more than a dozen U.S. sectors. 

At the same time, the U.S. faces internal challenges in cyber preparedness. The recent dismissal of Gen. Timothy Haugh, who led both the NSA and Cyber Command, has created leadership uncertainty. Budget cuts to election security programs have added to concerns. 

While a military ceasefire between Iran and Israel may be holding, experts warn the cyber conflict is far from over. Independent threat actors and ideological sympathizers could continue launching attacks. Analysts stress the need for sustained investment in cybersecurity infrastructure—both public and private—as digital warfare becomes a long-term concern.
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Routers
CISA CISA advisory CISA warning Cyber Security Hacker attack Internet Routers internet Security Public Wifi router security Routers

CISA Warns of Renewed Exploits Targeting TP-Link Routers with Critical Flaws

 

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has raised fresh concerns about several outdated TP-Link router models that are being actively exploited by cybercriminals. Despite the flaw being identified years ago, it has re-emerged in recent attack campaigns, prompting its addition to CISA’s Known Exploited Vulnerabilities (KEV) catalog. 

The security issue is a command injection vulnerability with a high severity rating of 8.8. It impacts three specific models: TP-Link TL-WR940N, TL-WR841N, and TL-WR740N. The flaw exists within the routers’ web-based management interface, where improperly validated input allows hackers to execute unauthorized commands directly on the devices. This makes it possible for attackers to gain control of the routers remotely if remote access is enabled, or locally if they’re on the same network. 

Although this vulnerability has been publicly known for years, recent activity suggests that malicious actors are targeting these devices once again. According to cybersecurity researchers, the attack surface remains significant because these routers are still in use across many households and small offices. 

CISA has mandated that all federal agencies remove the affected router models from their networks by July 7, 2025. It also strongly recommends that other organizations and individuals replace the devices to avoid potential exploitation. 

The affected routers are particularly vulnerable because they are no longer supported by the manufacturer. The TL-WR940N last received a firmware update in 2016, the TL-WR841N in 2015, and the TL-WR740N has gone without updates for over 15 years. As these devices have reached end-of-life status, no further security patches will be provided. Users are urged to upgrade to newer routers that are regularly updated by manufacturers. 

Modern Wi-Fi routers often include enhanced performance, support for more devices, and built-in security protections. Some brands even offer network-wide security features to safeguard connected devices against malware and intrusion attempts. Additionally, using antivirus software with extra security tools, such as VPNs and threat detection, can further protect against online threats. 

Outdated routers not only put your personal information at risk but also slow down internet speed and struggle to manage today’s connected home environments. Replacing obsolete hardware is an important step in defending your digital life. 

Ensuring you’re using a router that receives timely security updates, combined with good cybersecurity habits, can significantly reduce your exposure to cyberattacks. 

CISA’s warning is a clear signal that relying on aging technology leaves both individuals and organizations vulnerable to renewed threats.
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