Critical Exim bug bypasses security filters on 1.5 million mail servers
Censys warns that over 1.5 million Exim mail transfer agent (MTA) instances are unpatched against a critical vulnerability that lets threat actors bypass security filters.
Security bug allows anyone to spoof Microsoft employee emails
A researcher has found a way to impersonate Microsoft corporate email accounts, which could make phishing attacks harder to spot.
Telegram Combolists and 361M Email Addresses
Last week, a security researcher sent me 122GB of data scraped out of thousands of Telegram channels. It contained 1.7k files with 2B lines and 361M unique email addresses of which 151M had never been seen in HIBP before. Alongside those addresses were passwords and, in many cases, the website the data pertains to. I've loaded it into Have I Been Pwned (HIBP) today because there's a huge amount of previously unseen email addresses and based on all the checks I've done, it's legitimate data. That's the high-level overview, now here are the details:
Distribution of DanaBot Malware via Word Files Detected by AhnLab EDR
There are two types of malicious documents that are distributed via email recently: those exploiting equation editor and those including external link URLs. This post will describe the infection flow of the DanaBot malware that is distributed through documents containing external links, the latter method, as well as the evidence and detection process with the AhnLab EDR product’s diagram. Figure 1 shows the content of a spam email with a Word document attached that contains an external link. As you can see, it is a sophisticatedly disguised email pretending to be a job application form to deceive the recipient. The attached file (.docx) is a Word document that contains an external link.
CISA: Email from federal agencies possibly accessed in Russian breach of Microsoft
CISA publicly released an emergency directive issued to federal agencies earlier this month, detailing how a breach at Microsoft could have affected the government.
Kobold letters
Anyone who has had to deal with HTML emails on a technical level has probably reached the point where they wanted to quit their job or just set fire to all the mail clients due to their inconsistent implementations. But HTML emails are not just a source of frustration, they can also be a serious security risk.
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Microsoft could have prevented Chinese cloud email hack, US cyber report says
Microsoft needs a security culture overhaul, a US report concludes. The software giant could have prevented a cloud email hack in 2023.
Microsoft network breached through password-spraying by Russian-state hackers
Senior execs' emails accessed in network breach that wasn't caught for 2 months.