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Think Hotel Wi-Fi Is Safe? Hackers Have Several Ways to Prove You Wrong

 



For many travelers, connecting to hotel Wi-Fi is one of the first things they do after checking in. But while some guests use the network for banking and work, others avoid sensitive activity unless they are connected through a VPN.

So, how safe is hotel Wi-Fi?

Cybersecurity experts say the answer is more nuanced than simply calling public Wi-Fi dangerous. Modern encryption has reduced many of the risks associated with public networks, but hotel Wi-Fi can still expose travelers to rogue networks, phishing attacks, poorly configured infrastructure and vulnerable devices.

In many cases, the biggest risk may not be the network itself, but how the user connects to and behaves on it.


The first risk can come from a fake network

Security analyst Udaya Vemuri advises travelers to be cautious about joining a network simply because its name appears to belong to the hotel.

Attackers can create fake Wi-Fi networks with names almost identical to legitimate hotel networks. The technique, known as an "evil twin" attack, can trick guests into connecting to an attacker-controlled access point.

The FBI's Internet Crime Complaint Center warned about this threat in a 2020 advisory, noting that criminals can create networks resembling legitimate hotel Wi-Fi and potentially monitor activity or redirect victims to fraudulent login pages. The agency also warned that hotel guests have limited control over the security of the infrastructure they are using, which may prioritize convenience over stronger security practices.

Travelers should therefore confirm the exact Wi-Fi name with hotel staff before connecting rather than selecting the network that merely looks familiar.


Simply sharing a network does not mean you are compromised

Dahvid Schloss, chief operating officer of cybersecurity firm Suzu Labs and a former government hacker who has security-tested hotel chains, takes a less alarmist view.

Schloss compares hotel Wi-Fi with other public networks, such as those in coffee shops. In his assessment, the likelihood of being attacked simply because another malicious user is connected to the same network is low.

That distinction matters because the common image of hackers automatically reading passwords from public Wi-Fi is outdated.

The Federal Trade Commission says most websites now use encryption, meaning information sent between a device and a legitimate website is generally protected even when the underlying network is public. HTTPS can therefore provide substantial protection against traffic interception.

However, HTTPS does not prove that a website is legitimate. Attackers can create encrypted fraudulent websites and use phishing or redirection to persuade victims to submit credentials.

This means a traveler can still be exposed even when the connection itself appears encrypted.


Fake hotel portals can steal credentials

Hotels commonly use captive portals that redirect guests to a webpage after they connect to Wi-Fi. These pages may request a room number, surname, email address or access code.

Because travelers expect this process, attackers can imitate it.

A rogue network may display a fake hotel login page or redirect users to a fraudulent Microsoft 365, email or banking page. In such cases, the attacker does not necessarily need to break encryption. The victim may simply be tricked into providing the information.

This makes phishing and social engineering an important part of the hotel Wi-Fi threat.


Network security is not a perfect guarantee

Recent research also shows why travelers should not assume that network-level protections make public Wi-Fi completely secure.

Researchers at the University of California, Riverside reported in February 2026 that weaknesses in Wi-Fi client isolation can, under certain conditions, allow attackers to bypass protections designed to prevent devices on the same network from interacting with one another.

Their AirSnitch research demonstrated techniques that could potentially allow an attacker to intercept or manipulate traffic despite client isolation.

The findings do not mean every hotel network is vulnerable, but they reinforce an important point: users should not rely entirely on the security mechanisms implemented by a public network.


Your device can be the weakest link

Both experts place considerable emphasis on user behavior.

Schloss argues that laptops can be particularly vulnerable to poor security habits because they are frequently used to download files, install software and access corporate systems. Smartphones are not immune, but their operating systems often impose stronger application restrictions.

The FBI recommends updating operating systems and applications before travel, keeping security software current, backing up important data, disabling Bluetooth when unnecessary and preventing devices from automatically reconnecting to public networks.

Automatic reconnection is particularly important because a device may join a previously saved network without the user consciously verifying that it is legitimate.

Browser warnings should also never be ignored. A certificate warning, unexpected redirect or request to install software can indicate that something is wrong with the connection or destination.


Use cellular data for sensitive activity

Vemuri takes a more cautious approach when handling sensitive information. For banking, work systems and other private activity, he uses a mobile hotspot instead of hotel Wi-Fi. When hotel Wi-Fi is unavoidable, he keeps devices updated, enables multifactor authentication and avoids sensitive tasks.

The FBI similarly recommends using a phone's hotspot instead of hotel Wi-Fi when possible, particularly for sensitive activity and telework.

A cellular hotspot is not completely immune to cyber threats, but it removes the user from the hotel's shared wireless environment and reduces exposure to risks associated with public Wi-Fi.


A VPN and MFA can add protection

For travelers who need to use hotel Wi-Fi, a reputable VPN can provide another layer of security by encrypting traffic between the device and the VPN provider. The FBI recommends reputable VPNs for telework over hotel Wi-Fi.

A VPN is not a substitute for other security measures, however. It cannot prevent phishing, malware downloads or users from voluntarily entering credentials into fraudulent websites.

Multifactor authentication can limit the damage if a password is compromised. The FBI recommends MFA for sensitive accounts and advises users to enable login notifications so suspicious activity can be detected quickly.

Travelers should configure MFA before leaving home rather than waiting until they are already on the road.


What travelers should do

Before connecting to hotel Wi-Fi, users should:

  1. Confirm the legitimate network name with hotel staff.
  2. Update their operating system, browser and applications.
  3. Disable automatic connection to public networks.
  4. Enable MFA and account security alerts.
  5. Use a cellular hotspot for banking and highly sensitive activity where possible.
  6. Use a reputable VPN for sensitive work when hotel Wi-Fi is unavoidable.
  7. Verify the website address and HTTPS before entering credentials.
  8. Avoid unfamiliar downloads or software updates prompted by Wi-Fi portals.
  9. Disable Bluetooth when it is not needed.
  10. Never bypass browser security warnings.


So, is hotel Wi-Fi safe?

Hotel Wi-Fi is not automatically dangerous, but it should not be treated as a trusted network either.

Simply sharing a network with an attacker does not mean a modern device will automatically be compromised, particularly when legitimate services use encryption. At the same time, rogue access points, fake captive portals, phishing, vulnerable devices and weaknesses in network isolation can create opportunities for attackers.

For routine browsing, an updated device using legitimate HTTPS websites can be reasonably protected. For banking, corporate systems and other highly sensitive activity, using a cellular hotspot remains the more cautious option.

The practical rule for travelers is simple: do not panic about hotel Wi-Fi, but do not trust it blindly either. Verify the network, secure your devices and accounts, and keep sensitive activity off shared networks whenever possible.

Proxy Servers: How They Work and What They Actually Do



When browsing online, your device usually connects directly to a website’s server. However, in certain cases, especially for privacy, security, or access control — a proxy server acts as a go-between. It stands between your device and the internet, forwarding your web requests and returning responses while showing its own public IP address instead of yours.

According to the U.S. National Institute of Standards and Technology (NIST), a proxy server is essentially a system that handles requests from clients and forwards them to other servers. In simple terms, it’s a digital middleman that manages the communication between you and the websites you visit.


How a Proxy Server Operates

Here’s how the process works:

1. Your computer or device sends a request to the proxy server instead of directly contacting a website.

2. The proxy then forwards that request to the destination site.

3. The site responds to the proxy.

4. The proxy returns the data to your device.

From your perspective, it looks like a normal browsing session, but from the website’s end, the request appears to come from the proxy’s IP address. Proxies can exist as physical network devices or as cloud-based services that users configure through system or browser settings.

Companies often use “reverse proxies” to manage and filter incoming traffic to their web servers. These reverse proxies can block malicious activity, balance heavy traffic loads, and improve performance by caching frequently accessed pages.


Why People Use Proxy Servers

Proxy servers are used for several reasons. They provide a basic layer of privacy by hiding your actual IP address and limiting what websites can track about you. They can also make it appear that you’re browsing from another location, allowing access to region-locked content or websites blocked in your area.

In workplaces and educational institutions, proxies help administrators restrict certain sites, monitor browsing activity, and reduce bandwidth consumption by storing copies of commonly visited web pages. Large organizations also rely on proxies to safeguard internal systems and regulate how employees connect to external networks.


The Limitations and Risks

Despite their advantages, proxy servers have notable limits. They do not encrypt your internet traffic, which means that if your connection is not secured through HTTPS, the information passing through can still be intercepted. Free or public proxy services pose particular risks, they often slow down browsing, log user activity, inject advertisements, or even harvest data for profit.

For users seeking genuine privacy or security, experts recommend using paid, reputable proxy services or opting for a Virtual Private Network (VPN). VPNs extend the idea of a proxy by adding encryption, ensuring that all traffic between the user and the internet is protected.


Proxy vs. VPN vs. NAT

Although proxies, VPNs, and Network Address Translation (NAT) all sit between your device and the wider web, they function differently.

• Proxy: Masks your IP address and filters traffic but does not encrypt your connection.

• VPN: Encrypts all online activity and provides a stronger layer of privacy and security.

• NAT: Operates within routers, allowing multiple devices in a household or office to share one public IP address. It’s a background process, not a privacy tool.

Proxy servers are practical tools for managing internet access, optimizing traffic, and adding basic privacy. However, they should not be mistaken for comprehensive security solutions. Users should view proxies as one layer of digital protection, effective when used properly, but insufficient on their own. For strong privacy, encryption, and security, a VPN remains the more reliable choice.



Google sets new rules to improve internet safety through better website security

 




Google is taking major steps to make browsing the web safer. As the company behind Chrome, the most widely used internet browser, Google’s decisions shape how people all over the world experience the internet. Now, the company has announced two new safety measures that focus on how websites prove they are secure.


Why is this important?

Most websites use something called HTTPS. This means that the connection between your device and the website is encrypted, keeping your personal data private. To work, HTTPS relies on digital certificates that prove a website is real and trustworthy. These certificates are issued by special organizations called Certificate Authorities.

But hackers are always looking for ways to cheat the system. If they manage to get a fake certificate, they can pretend to be a real website and steal information. To prevent this, Google is asking certificate providers to follow two new safety processes.


The first method: double-checking website identity (MPIC)

Google is now supporting something called MPIC, short for Multi-Perspective Issuance Corroboration. This process adds more layers of checking before a certificate is approved. Right now, website owners only need to show they own the domain once. But this can be risky if someone finds a way to fake that proof.

MPIC solves the issue by using several different sources to confirm the website’s identity. Think of it like asking multiple people to confirm someone’s name instead of just asking one. This makes it much harder for attackers to fool the system. The group that oversees certificate rules has agreed to make MPIC a must-follow step for all providers.


The second method: scanning certificates for errors (linting)

The second change is called linting. This is a process that checks each certificate to make sure it’s made properly and doesn’t have mistakes. It also spots certificates that use outdated or weak encryption, which can make websites easier to hack.

Linting helps certificate providers stick to the same rules and avoid errors that could lead to problems later. Google has mentioned a few free tools that can be used to carry out linting, such as zlint and certlint. Starting from March 15, 2025, all new public certificates must pass this check before they are issued.


What this means for internet users

These changes are part of Google’s ongoing plan to make the internet more secure. When websites follow these new steps, users can be more confident that their information is safe. Even though these updates happen in the background, they play a big role in protecting people online.



Hidden Dangers in Third-Party Supply Chain

 


A supply chain attack refers to any cyberattack targeting a third-party vendor within an organization's supply chain. Historically, these attacks have exploited trust relationships, aiming to breach larger organizations by compromising smaller, less secure suppliers.

The Growing Threat of Software Supply Chain Attacks

While traditional supply chain attacks remain a concern, the software supply chain poses an even greater threat. Modern development practices rely heavily on third-party components, including APIs, open-source software, and proprietary products, creating vulnerabilities across multiple systems.

In the event of a security breach, the integrity of these systems can be compromised. A recent study highlights that many vulnerabilities in digital systems go unnoticed, exposing businesses to significant risks. Increased reliance on third-party software and complex supply chains has expanded the threat landscape beyond internal assets to external dependencies.

Key Findings from the 2024 State of External Exposure Management Report

The 2024 State of External Exposure Management Report underscores several critical vulnerabilities:

  • Web Servers: Web server environments are among the most vulnerable assets, accounting for 34% of severe issues across surveyed assets. Platforms such as Apache, NGINX, Microsoft IIS, and Google Web Server host more severe issues than 54 other environments combined.
  • Cryptographic Protocols: Vulnerabilities in protocols like TLS (Transport Layer Security) and HTTPS contribute to 15% of severe issues on the attack surface. These protocols, essential for secure communication, often lack proper encryption, making them a significant security concern.
  • Web Application Firewalls (WAFs): Only half of the web interfaces handling personally identifiable information (PII) are protected by a WAF. Moreover, 60% of interfaces exposing PII lack WAF coverage, increasing the risk of exploitation by cybercriminals.

Challenges in Vulnerability Management

Outdated vulnerability management approaches often leave assets exposed to increased risks. Organizations must adopt a proactive strategy to mitigate these threats, beginning with a thorough assessment of supply chain risks.

Steps to Secure the Supply Chain

  1. Assess Supplier Security Postures: Evaluate suppliers' data access and organizational impact, and categorize them into risk profiles based on vulnerability levels.
  2. Conduct Risk Assessments: Use questionnaires, on-site visits, and process reviews to identify weaknesses within the supply chain.
  3. Visualize Risks: Utilize interaction maps to gain a clearer understanding of supply chain vulnerabilities and develop a comprehensive security strategy addressing both physical and virtual risks.
  4. Collaborate with Leadership: Ensure senior leadership aligns security priorities to mitigate threats such as ransomware, data breaches, and sabotage.

Addressing Endpoint Vulnerabilities

With the rise of remote work, monitoring supplier endpoints has become critical. Risks such as device theft, data leaks, and shadow IT require proactive measures. While VPNs and virtual desktops are commonly used, they may fall short, necessitating continuous monitoring of telework environments.

Continuous Monitoring and Threat Management

Effective risk management requires continuous monitoring to protect critical assets and customer information. Organizations should prioritize advanced protective measures, including:

  • Threat Hunting: Identify potential breaches before they escalate, reducing the impact of cyberattacks.
  • Centralized Log Aggregation: Facilitate comprehensive analysis and anomaly detection through a unified system view.
  • Real-Time Monitoring: Enable swift response to security incidents, minimizing potential damage.

Building a Resilient Cybersecurity Framework

A robust, integrated risk monitoring strategy is essential for modern cybersecurity. By consolidating proactive practices into a cohesive framework, organizations can enhance visibility, close detection gaps, and fortify supply chains against sophisticated attacks. This approach fosters resilience and maintains trust in an increasingly complex digital landscape.

FBI Warns of Cybercriminals Stealing Cookies to Bypass Security

 

Cybercriminals are now targeting cookies, specifically the “remember-me” type, to gain unauthorized access to email accounts. These small files store login information for ease of access, helping users bypass multi-factor authentication (MFA). However, when a hacker obtains these cookies, they can use them to circumvent security layers and take control of accounts. The FBI has alerted the public, noting that hackers often obtain these cookies through phishing links or malicious websites that embed harmful software on devices. Cookies allow websites to retain login details, avoiding repeated authentication. 

By exploiting them, hackers effectively skip the need for usernames, passwords, or MFA, thus streamlining the process for unauthorized entry. This is particularly concerning as MFA typically acts as a crucial security measure against unwanted access. But when hackers use the “remember-me” cookies, this layer becomes ineffective, making it an appealing route for cybercriminals. A primary concern is that many users unknowingly share these cookies by clicking phishing links or accessing unsecured sites. Cybercriminals then capitalize on these actions, capturing cookies from compromised devices to access email accounts and other sensitive areas. 

This type of attack is less detectable because it bypasses traditional security notifications or alerts for suspicious login attempts, providing hackers with direct, uninterrupted access to accounts. To combat this, the FBI recommends practical steps, including regularly clearing browser cookies, which removes saved login data and can interrupt unauthorized access. Another strong precaution is to avoid questionable links and sites, as they often disguise harmful software. Additionally, users should confirm that the websites they visit are secure, checking for HTTPS in the URL, which signals a more protected connection. 

Monitoring login histories on email and other sensitive accounts is another defensive action. Keeping an eye on recent activity can help users identify unusual login patterns or locations, alerting them to possible breaches. If unexpected entries appear, changing passwords and re-enabling MFA is advisable. Taking these actions collectively strengthens an account’s defenses, reducing the chance of cookie-based intrusions. While “remember-me” cookies bring convenience, their risks in today’s cyber landscape are notable. 

The FBI’s warning underlines the importance of digital hygiene—frequently clearing cookies, avoiding dubious sites, and practicing careful online behavior are essential habits to safeguard personal information.

Hackers Attack HFS Servers to Install Malware and Mine Monero


 

Cybersecurity researchers have identified a wave of attacks targeting outdated versions of the HTTP File Server (HFS) software from Rejetto, aiming to distribute malware and cryptocurrency mining tools. These attacks exploit a critical security flaw known as CVE-2024-23692, which allows hackers to execute arbitrary commands without needing authentication.

CVE-2024-23692 is a high-severity vulnerability discovered by security researcher Arseniy Sharoglazov. It was publicly disclosed in May this year, following a detailed technical report. The flaw is a template injection vulnerability that enables remote attackers to send specially crafted HTTP requests to execute commands on the affected systems. The vulnerability affects HFS versions up to and including 2.3m. In response, Rejetto has issued a warning to users, advising against the use of these versions due to their susceptibility to control by attackers.

Researchers at AhnLab Security Intelligence Center (ASEC) have observed multiple attacks on version 2.3m of HFS. This version remains popular among individuals, small teams, educational institutions, and developers for network file sharing. The attacks likely began after the release of Metasploit modules and proof-of-concept exploits soon after the vulnerability's disclosure.

During these attacks, hackers gather information about the compromised system, install backdoors, and deploy various types of malware. Commands such as "whoami" and "arp" are executed to collect system and user information and identify connected devices. Hackers also add new users to the administrators' group and terminate the HFS process to prevent other threat actors from exploiting the same vulnerability.

In several cases, the XMRig tool, used for mining Monero cryptocurrency, was installed. ASEC researchers attribute one of these attacks to the LemonDuck threat group. Other malware payloads deployed include:

1. XenoRAT: A tool for remote access and control, often used alongside XMRig.

2. Gh0stRAT: Used for remote control and data exfiltration.

3. PlugX: A backdoor associated with Chinese-speaking threat actors, providing persistent access.

4. GoThief: An information stealer that uses Amazon AWS for data exfiltration, capturing screenshots, collecting desktop file information, and sending data to an external command and control server.

AhnLab continues to detect attacks on HFS version 2.3m. Given that the server must be online for file sharing, it remains a lucrative target for hackers. Rejetto recommends users switch to version 0.52.x, which is the latest release despite its lower version number. This version is web-based, requires minimal configuration, and supports HTTPS, dynamic DNS, and administrative panel authentication.

The company has also provided indicators of compromise, including malware hashes, IP addresses of command and control servers, and download URLs for the malware used in these attacks. Users are urged to update their software to the latest version and follow cybersecurity best practices to protect their systems from such vulnerabilities.

By assimilating and addressing these vulnerabilities, users can better secure their systems against these sophisticated attacks.