Tag: public key cryptography

  • What’s New in Cybersecurity This Week: Projects, Videos, Articles & Podcasts I’m Following – 5/26/25

    What’s New in Cybersecurity This Week: Projects, Videos, Articles & Podcasts I’m Following – 5/26/25

    Welcome to my weekly cybersecurity roundup! Here, I share updates on the projects I’m currently working on, along with the most insightful cybersecurity videos I watched, articles I found valuable, and podcasts I tuned into this week.

    Featured Analysis

    Featured article analysis: Suspected InfoStealer Malware Data Breach Exposed 184 Million Logins and Passwords

    This article details a significant data breach involving a publicly exposed database containing an astonishing 184 million unique logins and passwords, totaling 47.42 GB of unencrypted credential data. The researcher who discovered the breach found a wide array of sensitive information, including emails, usernames, passwords, and associated URLs for numerous online services, financial institutions, healthcare platforms, and government portals across various countries. The lack of password protection or encryption on the database dramatically increased the potential for malicious actors to access and exploit this highly sensitive information, posing substantial risks to individuals whose credentials were exposed. The researcher responsibly disclosed the finding to the hosting provider, which subsequently restricted public access to the database.

    The analysis of the exposed data strongly suggests that it was harvested by infostealer malware, a type of malicious software designed to extract sensitive information from infected systems, particularly credentials stored in browsers and applications. While the exact method of data collection remains unknown, the article outlines common tactics used by cybercriminals to deploy such malware, including phishing emails, malicious websites, and compromised software. The potential consequences of this type of data exposure are severe, ranging from credential stuffing attacks and account takeovers to corporate espionage and targeted phishing campaigns. The sheer volume and variety of compromised accounts, including those associated with financial and governmental institutions, underscore the gravity of the situation and the potential for widespread harm.

    In response to this alarming discovery, the article provides crucial recommendations for users to enhance their online security. These include the fundamental practices of regularly changing passwords, using unique and complex passwords for each account, and enabling two-factor authentication wherever possible. Additionally, the article advises users to check if their credentials have been exposed in known breaches, monitor their accounts for suspicious activity, and consider the use of password managers with caution. The researcher emphasizes the importance of proactive measures and responsible data handling, particularly concerning sensitive information stored in email accounts. The incident serves as a stark reminder of the persistent threats posed by infostealer malware and the critical need for individuals and organizations to prioritize robust cybersecurity practices.

    Projects

    • TryHackMe – Public Key Cryptography Basics – Complete
    • TryHackMe – Hashing Basics – In Progress

    Videos

    Articles

  • What’s New in Cybersecurity This Week: Projects, Videos, Articles & Podcasts I’m Following – 5/19/25

    What’s New in Cybersecurity This Week: Projects, Videos, Articles & Podcasts I’m Following – 5/19/25

    Welcome to my weekly cybersecurity roundup! Here, I share updates on the projects I’m currently working on, along with the most insightful cybersecurity videos I watched, articles I found valuable, and podcasts I tuned into this week.

    Featured Analysis

    Featured article analysis: Data-stealing Chrome extensions impersonate Fortinet, YouTube, VPNs

    This article from BleepingComputer details a significant and concerning campaign involving over 100 malicious Google Chrome extensions designed to steal user data and execute remote scripts. These extensions cleverly impersonate legitimate and popular tools such as VPNs, AI assistants, crypto utilities, and even specific brands like Fortinet and YouTube. By offering some of the promised functionality while simultaneously operating covertly in the background, these extensions deceive users into granting them broad permissions. This allows the threat actors to pilfer browser cookies, including sensitive session tokens, perform DOM-based phishing attacks, inject malicious JavaScript, and even modify network traffic for purposes like ad delivery, redirection, or proxying user activity through their own servers.

    The discovery by DomainTools highlights the scale of this operation, with over 100 fake domains created to promote these malicious extensions, likely through malvertising campaigns. These websites feature seemingly legitimate “Add to Chrome” buttons that directly link to the malicious listings on the Chrome Web Store, lending a false sense of security and authenticity. The article provides a list of several of these deceptive domains, showcasing the wide range of impersonated services and brands. While Google has reportedly removed many of the identified extensions, the fact that some still persist underscores the challenges in rapidly detecting and eliminating such threats, as well as the actors’ determination to remain active.

    The potential consequences for users who install these malicious extensions are severe, ranging from account hijacking and personal data theft to comprehensive monitoring of their browsing activities. The article emphasizes that these extensions essentially create a backdoor within the infected browser, granting attackers extensive control and the potential for further exploitation. Alarmingly, the stolen session cookies could even be used to compromise legitimate VPN devices or accounts, providing a pathway to infiltrate corporate networks and launch more damaging attacks. The article concludes with crucial advice for users: exercise caution by only trusting reputable publishers, carefully reviewing user reviews for any suspicious signs, and remaining vigilant about the permissions requested by browser extensions.

    Projects

    • TryHackMe – Public Key Cryptography Basics – In Progress

    Videos

    Articles

    Podcasts