Informations about SSL certificates and networks security
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Three weeks ago (could it possibly be that long already?), I wrote about the increased risks of working remotely during the COVID-19 pandemic. One, employees are working from their home networks and sometimes from their home computers. These systems are more likely to be out of date, unpatched, and unprotected. They are more vulnerable to … Read More “Cybersecurity During COVID-19” »
Microsoft is reporting that an Emotat malware infection shut down a network by causing computers to overheat and then crash. The Emotet payload was delivered and executed on the systems of Fabrikam — a fake name Microsoft gave the victim in their case study — five days after the employee’s user credentials were exfiltrated to … Read More “Emotat Malware Causes Physical Damage” »
Google presented its system of using deep-learning techniques to identify malicious email attachments: At the RSA security conference in San Francisco on Tuesday, Google’s security and anti-abuse research lead Elie Bursztein will present findings on how the new deep-learning scanner for documents is faring against the 300 billion attachments it has to process each week. … Read More “Deep Learning to Find Malicious Email Attachments” »
Attackers are targeting two-factor authentication systems: Attackers working on behalf of the Iranian government collected detailed information on targets and used that knowledge to write spear-phishing emails that were tailored to the targets’ level of operational security, researchers with security firm Certfa Lab said in a blog post. The emails contained a hidden image that … Read More “Real-Time Attacks Against Two-Factor Authentication” »
Brian Krebs is reporting on some new and sophisticated phishing scams over the telephone. I second his advice: “never give out any information about yourself in response to an unsolicited phone call.” Always call them back, and not using the number offered to you by the caller. Always. Powered by WPeMatico
Really interesting article: A trained eye (or even a not-so-trained one) can discern when something phishy is going on with a domain or subdomain name. There are search tools, such as Censys.io, that allow humans to specifically search through the massive pile of certificate log entries for sites that spoof certain brands or functions common … Read More “Detecting Phishing Sites with Machine Learning” »
Krebs on Security is reporting that all 85,000 Google employees use two-factor authentication with a physical token. A Google spokesperson said Security Keys now form the basis of all account access at Google. “We have had no reported or confirmed account takeovers since implementing security keys at Google,” the spokesperson said. “Users might be asked … Read More “Google Employees Use a Physical Token as Their Second Authentication Factor” »
This vulnerability is a result of an interaction between two different ways of handling e-mail addresses. Gmail ignores dots in addresses, so bruce.schneier@gmail.com is the same as bruceschneier@gmail.com is the same as b.r.u.c.e.schneier@gmail.com. (Note: I do not own any of those email addresses — if they’re even valid.) Netflix doesn’t ignore dots, so those are … Read More “Obscure E-Mail Vulnerability” »
This is interesting research and data: With Google accounts as a case-study, we teamed up with the University of California, Berkeley to better understand how hijackers attempt to take over accounts in the wild. From March 2016 to March 2017, we analyzed several black markets to see how hijackers steal passwords and other sensitive data. … Read More “Google’s Data on Login Thefts” »
Google has a new login service for high-risk users. it’s good, but unforgiving. Logging in from a desktop will require a special USB key, while accessing your data from a mobile device will similarly require a Bluetooth dongle. All non-Google services and apps will be exiled from reaching into your Gmail or Google Drive. Google’s … Read More “Google Login Security for High-Risk Users” »