Latest cybersecurity reporting from selected sources.

AT&T Corp. disclosed today that a new data breach has exposed phone call and text message records for roughly 110 million people -- nearly all of its customers. AT&T said it delayed disclosing the incident in response to "national security and public safety concerns," noting that some of the records included data that could be used to determine where a call was made or text message sent. AT&T also acknowledged the customer records were exposed in a cloud database that was protected only by a username and password (no multi-factor authentication needed).

All Organizations That Use X Should Review Their Two-Factor Authentication SettingsGoogle Cloud's Mandiant says its account at X, formerly Twitter, was hijacked and used to link to cryptocurrency phishing pages after an attacker guessed the account password, apparently after Twitter last year deactivated the account's SMS-based two-factor authentication, leaving it unprotected.