Android 12 allows you to disable 2G networks on your mobile
26/01/2022The latest version of Google's mobile operating system, Android 12, allows you to disable connections through 2G data networks. To do this, you must deactivate this connectivity through the 'Network and Internet' and 'SIM' sections, where you will find the option “allow 2G”, which you can activate or deactivate according to your preferences at any time. As explained by the Electronic Frontier Foundation (EFF), 2G networks has a very vulnerable encryption system and is quite easy that a hacker intercept the signal and track the exact location of the user. Android reports that despite the fact that 2G connectivity is disabled, this coverage will continue to be available for emergency calls.
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WiFi Security: Assessment of threats in wireless networks
08/03/2024Wifi connectivity has gone from being limited to restricted environments to becoming omnipresent in virtually every aspect of our daily lives. The ability to connect to the Internet from anywhere, be it at home, in a café, at work, in public spaces, or even in-flight, has enhanced the convenience in our daily lives. Moreover, the expansion of Wifi networks and the use of new manufacturing technologies now allow the interconnection of devices, leading to the significant rise of the Internet of Things (IoT) and providing users with more comprehensive control over their digital environments. However, this proliferation of Wifi networks has also given rise to new threats that require careful evaluation and effective security strategies to ensure secure and risk-free Wifi connections for our data and information. Common Wifi security threats include data interception Man-in-the-Middle (MITM) attacks One of the fundamental challenges in Wifi security is preventing MITM attacks, where an intruder inserts themselves into the communication between two parties, compromising the integrity and confidentiality of sensitive data such as passwords and financial information. Spoofing of access points Hackers can create fake Wifi networks that mimic legitimate ones to attract unsuspecting users. Once connected to these malicious networks, our data can be captured by cybercriminals who may sell or misuse it for illicit purposes. Tips for achieving a secure Wifi connection: Strengthen authentication and use security protocols Prioritize strong encryption for networks to protect confidential information transmitted through it. WPA (Wifi Protected Access) encryption uses stronger algorithms than its predecessor, WEP (Wired Equivalent Privacy), making it more difficult for hackers to intercept and decipher data. Advanced security protocols like WPA3 provide individualized data encryption and advanced two-factor authentication (2FA) methods, adding an extra layer of security by requiring additional verification. Device management Properly manage and monitor devices connected to Wifi networks to minimize risks associated with the large number of connected devices in homes and businesses. Regularly update the router firmware and all connected devices to address potential vulnerabilities. Segmentation of the network to separate critical devices from less secure ones also helps mitigate the risk of threat propagation. Secure Router Configuration The router secure configuration is what will ensure the robustness and overall security of a wireless network. The router, being the first point of contact for devices connected to the Internet, acts as the first line of defence against potential attacks. For this reason, it is important to understand that the proper configuration of the router not only guarantees a stable and efficient connection but also establishes a protected environment that safeguards the integrity and privacy of our data. How to configure the router securely? To ensure a correct and secure configuration of the router, it is recommended to: Change the default username and password of the router, as these are easily accessible to attackers. Use strong passwords containing a combination of letters, numbers, and special characters. Disable remote administration to prevent cybercriminals from accessing the router externally. Enable WPA2 or WPA3 encryption instead of the outdated WEP for enhanced network security. Optionally, disable SSID broadcast to make the network less visible and harder to detect by hackers. Keep the router firmware updated to address vulnerabilities and improve overall device security. By following these steps, you will strengthen the security of your wireless network and reduce the chances of experiencing unwanted attacks or intrusions.
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Video calling apps listen when the microphone is off, according to a study
25/04/2022A group of researchers from the University of Wisconsin-Madison (United States) has determined that video conferencing applications can continue accessing audio data even if the user has disabled the microphone. To demonstrate this, they have studied the most popular video conferencing applications and have analyzed the behavior of the mute button until they has determined that all the applications that they has tested whether the microphone was open or closed, occasionally collected raw data and delivered it to the servers of their services. In their research they have worked with binary analysis tools to see how the audio was transferred from the application to the audio drivers of the computers and then to the network. They aslo have created, through machine learning models ( 'machine learning'), a classifier of daily activities that, with 82% accuracy, has determined which activities users were doing while their microphones were, theoretically, silenced. In relation to this, the authors of this work recall that beyond muting the microphone, you can turn off the microphone of a device through the settings menu, a safer option to limit access to confidential information and sensitive data. All the conclusions of this study will be known next July in the Privacy Improvement Technologies Symposium.
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Island Browser for Business Reaches $1.3 Billion Value
06/04/2022Just some weeks after its launch, Island, the webbrowser focused in enterprise and security, has just reached a $1.3 billion valuation. Island browser is based on chromium and has been developed by two former Symantec executives, who were looking for an option configured to the web security needs of companies and not conventional users. The new browser, in addition to limiting the add-ons that many often some people install on company computers and that sometimes cause significant security breaches, incorporates specific tools to prevent this type of actions, protect SaaS applications, identify incidents and prevent data theft. Depending on the level of security required by each company, Island Browser allows, for example, to download content or not, disable or enable the copy and paste option or deny access to certain domains, among other options. From Island, also insist that their project is based on the utility and not on the consumer, so that the characterization level of Island browser it offers the minimum.
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