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Secure Your Wi-Fi: Spot Hacking Signs and Preventive Tips

 

The discussion around being cautious regarding security while utilizing public Wi-Fi networks is well-known due to the susceptibility of these networks to compromise by criminals. Yet, it's essential to recognize that private Wi-Fi networks are also vulnerable to hacking.

Cybercriminals possess the ability to breach private Wi-Fi networks and gain access to personal data. Gaining insight into their techniques is crucial for enhancing network security.

Methods Employed by Cybercriminals to Compromise Wi-Fi Networks

The inherent wireless nature of Wi-Fi networks allows numerous devices to connect concurrently. However, vulnerabilities exist that attackers exploit to illicitly access browsing sessions. Several tactics are employed to achieve this...

1. Obtaining Router's Default Password
Relying on the default password of your Wi-Fi router poses risks, as intruders can deduce it from the device's settings. It is advisable to change the password immediately upon setting up your connection. Once this step is taken, the default passcode becomes invalid.

2. Utilizing Brute-Force Attacks
Merely altering the default password doesn't guarantee immunity against hacking. Malevolent actors can utilize brute-force techniques, attempting multiple combinations of usernames and passwords until a match is found. This process is automated to expedite testing numerous login credentials.

3. Executing DNS Hijacking
Hackers might execute a DNS hijack, redirecting traffic from your device to their malicious websites. This manipulation involves altering the queries generated by your Wi-Fi's DNS. Consequently, you unknowingly connect to their sites, enabling them to extract your data.

Detecting Signs of Wi-Fi Breach

Cybercriminals endeavor to execute non-intrusive infiltration of your Wi-Fi network. However, by remaining vigilant, you can discern potential indications of compromise:

1. Unfamiliar IP Addresses Connected
Each internet-connected device possesses a distinctive IP address. Your Wi-Fi maintains a roster of connected IP addresses. Although these devices might not be readily visible, they are stored in a designated area. Reviewing the IP address section in your device settings can reveal unfamiliar devices.

2. Browser Redirection
Hacked Wi-Fi networks often prompt web browsers to perform unintended functions. For instance, inputting a specific URL may result in redirection to unfamiliar websites. Such alterations indicate a DNS setting change, redirecting browsers to malicious sites for data extraction.

3. Modified Wi-Fi Password
Observing sudden password inaccuracies indicates potential intrusion. If you haven't modified the password, a hacker likely has. Changing the password is among the first steps taken by scammers post-breach, denying your immediate access and facilitating their control.

4. Sluggish Internet Connection
While occasional internet slowdowns are common, persistent sluggishness can denote unauthorized network access. Intruders could engage in bandwidth-intensive activities, causing noticeable network degradation.

Preventive Measures Against Wi-Fi Hacking

Despite Wi-Fi's associated security risks, several proactive steps can thwart potential attacks:

1. Enable Encryption Mode
Utilizing encryption safeguards against eavesdropping attacks that intercept communications. Encryption obfuscates data, rendering it indecipherable to external parties even if acquired. Contemporary Wi-Fi routers typically include default encryption options like WPA and WPA2, enhancing security.

2. Regular Password Changes
The security of your Wi-Fi network hinges on your password's strength. While robust passwords are advised, their invulnerability is uncertain. To preempt this, periodically alter your router's password. This continual modification deters intruders. Employing a password manager can alleviate the inconvenience while boosting security.

3. VPN Usage in Public Spaces
Public Wi-Fi networks are susceptible to intrusions. Utilizing a virtual private network (VPN) conceals your IP address, rendering you inconspicuous while browsing. This measure safeguards against criminal attempts to compromise your connectivity.

4. Deactivate Remote Administration
Remote access to Wi-Fi networks, though convenient, is exploited by attackers. Disabling remote administration, unless necessary, closes an exploitable gap.

5. Turn Off Wi-Fi When Inactive
Inactive Wi-Fi is impervious to hacking. Switching off your router during periods of inactivity eliminates immediate threats and prevents unauthorized usage by neighbors.

6. Fortify Wi-Fi Security Settings
Private Wi-Fi networks offer substantial user and security controls. Activation of multiple security features is advisable. Layers of security present formidable challenges for criminals attempting unauthorized entry.

In conclusion, while discussions often center on the vulnerability of public Wi-Fi networks, it's vital to recognize that private networks are not immune to hacking. Understanding the tactics employed by cybercriminals, recognizing breach indicators, and implementing comprehensive security measures are pivotal in safeguarding your Wi-Fi network and personal data.

New Nimbuspwn Linux Flaws Could Provide Attackers Root Access

 

Microsoft uncovered vulnerabilities in Linux systems that could be used to grant attackers root access if they were chained together. 

The flaws, dubbed "Nimbuspwn," are detected in networkd-dispatcher, a dispatcher daemon for systemd-networkd connection status changes in Linux, and are labelled as CVE-2022-29799 and CVE-2022-29800. As part of a code review and dynamic analysis effort, Microsoft found the vulnerabilities while listening to signals on the System Bus. 

Microsoft’s Jonathan Bar Or explained, “Reviewing the code flow for networkd-dispatcher revealed multiple security concerns, including directory traversal, symlink race, and time-of-check-time-of-use race condition issues, which could be leveraged to elevate privileges and deploy malware or carry out other malicious activities.”
 
“The vulnerabilities can be chained together to gain root privileges on Linux systems, allowing attackers to deploy payloads, like a root backdoor, and perform other malicious actions via arbitrary root code execution.” 

He went on to state that ransomware attackers might use Nimbuspwn as a route for root access in order to have a significant impact on affected machines. Clayton Craft, the maintainer of the networkd-dispatcher, apparently worked promptly to remedy the flaws after responsibly revealing the bugs. 

Linux users who are affected are recommended to apply patches as soon as they become available. Although Nimbuspwn has the potential to affect a huge number of people, attackers would first need local access to the targeted systems in order to exploit the flaws. 

Mike Parkin, senior technical engineer at Vulcan Cyber argued, “Any vulnerability that potentially gives an attacker root-level access is problematic. Fortunately, as is common with many open-source projects, patches for this new vulnerability were quickly released.” 

“While susceptible configurations aren’t uncommon, exploiting these vulnerabilities appears to require a local account and there are multiple ways to mitigate them beyond the recommended patching. There is currently no indication that these vulnerabilities have been exploited in the wild.”

Putin demanded to protect children from harmful information on the Internet

Russian President Vladimir Putin demanded to protect children from harmful information on the Internet. He believes that this is a very urgent problem that the whole world is solving now. According to the president, there are people who, for their own profit, drive minors to suicide.

“As for information resources, I believe that our schools should use state information resources. This does not mean at all that we should reduce the space of freedom to a minimum. Not at all,” the Russian leader clarified.

Putin reminded that personal data of users are collected by all information resources, “so we should take care to ensure the safety of children and citizens in the online space”.

“And here, of course, only the state can be asked for their rational use and for ensuring the safety of people. Therefore, information resources in schools should be state-owned,” the president explained.

“We know, unfortunately, that all sorts of shameless people who do not think about anything but profit use the Internet to make a profit to the maximum. And, sorry for the bad manners, they didn't care about the fate of people and children. Therefore, this is where children are driven to suicide, here is child pornography,” Putin explained.

He also positively assessed the initiative of domestic Internet companies to create their own public organization to ensure the information hygiene of minors. “We will continue to support and help this,” the president concluded.  

On September 1, Putin said that the state and society should join efforts to create a safe online space for children. He expressed hope that global digital platforms will be involved in ensuring the safety of children online.