Remove Accountability Remove Authentication Remove Information Security
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Failures in Twitter’s Two-Factor Authentication System

Schneier on Security

Twitter is having intermittent problems with its two-factor authentication system: Not all users are having problems receiving SMS authentication codes, and those who rely on an authenticator app or physical authentication token to secure their Twitter account may not have reason to test the mechanism.

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A large botnet targets M365 accounts with password spraying attacks

Security Affairs

A botnet of 130,000+ devices is attacking Microsoft 365 accounts via password-spraying, bypassing MFA by exploiting basic authentication. SecurityScorecard researchers discovered a botnet of over 130,000 devices that is conducting password-spray attacks against Microsoft 365 (M365) accounts worldwide.

Passwords 118
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Change Healthcare Breach Hits 100M Americans

Krebs on Security

The chief information security officer for a large academic healthcare system affected by the breach told KrebsOnSecurity they participated in a call with the FBI and were told a third party partner managed to recover at least four terabytes of data that was exfiltrated from Change by the cybercriminal group. .”

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Not All MFA is Equal, and the Differences Matter a Lot

Daniel Miessler

People are starting to get the fact that texts (SMS) are a weak form of multi-factor authentication (MFA). In that post we talked about 8 levels of password security, starting from using shared and weak passwords and going all the way up to passwordless. It completely changes how authentication is done.

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Storm-2372 used the device code phishing technique since August 2024

Security Affairs

The attackers employ a phishing technique called device code phishing, which tricks users into logging into productivity apps while capturing login tokens that can be used to take over compromised accounts. ” Device code phishing attacks exploit authentication flows to steal tokens, granting attackers access to accounts and data.

Phishing 113
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U.S. CISA adds Veeam Backup and Replication flaw to its Known Exploited Vulnerabilities catalog

Security Affairs

This week, Sophos researchers warned that ransomware operators are exploiting the critical vulnerability CVE-2024-40711 in Veeam Backup & Replication to create rogue accounts and deploy malware. Attackers accessed targets via VPN gateways lacking multifactor authentication, some of which ran outdated software. concludes Sophos.

Backups 128
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Voter Records, SSN and Commercial Authentication

Adam Shostack

That also would include dates of birth, the last four digits of voters' Social Security numbers. I want to consider only the information security aspects of the letter , which also states that "Please be aware that any documents that are submitted to the full Commission will also be made available to the public."