Latest cybersecurity reporting from selected sources.

Not every cloud breach starts with malware or a zero-day. In this incident, attackers discovered an exposed Spring Boot Actuator endpoint, harvested credentials from leaked configuration data, then used the OAuth2 Resource Owner Password Credentials (ROPC) flow to authenticate without MFA.

Also, Blue Shield Breach Exposes 4.7M, Cyberattack Disrupts City Systems in TexasThis week, Cookie Bite bypasses MFA in Azure Entra ID, Microsoft fixed RDP Freezes, a ransomware attack in Catalonia, Blue Shield exposed data to Google, a cyberattack disrupted city systems in Texas, South Korean telecom breach exposed USIM data and a warning about North Korean IT deepfakes.

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).

Cisco Duo's security team warns that hackers stole some customers' VoIP and SMS logs for multi-factor authentication (MFA) messages in a cyberattack on their telephony provider. [...]

Customer Accounts Were Secured by MFA, But Contractor's Credentials Exposed DataAustralian telecom company Tangerine is blaming the compromise of a third-party contractor's credentials for exposing personal information of 232,000 customers, which had been stored in a legacy database. The breach exposed customers' names, birthdates, mobile numbers, addresses and account numbers.