Latest cybersecurity reporting from selected sources.

At least two distinct threat actors are weaponizing a novel evasion technique called OAuth client ID spoofing in cloud campaigns, while slipping past telemetry

Attacker First Compromised AI Tool Used by Vercel Employee, Platform Provider FindsCloud platform provider Vercel said an attacker breached its systems and stole customer data after compromising a third-party agentic artificial intelligence tool used by an employee, called Context.ai, and stealing from it credentials and OAuth tokens tied to multiple services and customers.

Mandiant says a wave of recent ShinyHunters SaaS data-theft attacks is being fueled by targeted voice phishing (vishing) attacks and company-branded phishing sites that steal single sign-on (SSO) credentials and multi-factor authentication (MFA) codes. [...]

ShinyHunters Campaign Uses Voice Phishing to Bypass MFA and Steal Corporate DataSecurity experts warn that "an active and ongoing campaign" being waged by ShinyHunters extortionists has at least 150 organizations in its sights across a range of sectors, with attackers using live voice phishing to bypass multifactor authentication, steal cloud data and hold it to ransom.

A proof-of-concept attack called "Cookie-Bite" uses a browser extension to steal browser session cookies from Azure Entra ID to bypass multi-factor authentication (MFA) protections and maintain access to cloud services like Microsoft 365, Outlook, and Teams. [...]

A 26-year-old man in Ontario, Canada has been arrested for allegedly stealing data from and extorting more than 160 companies that used the cloud data service Snowflake. On October 30, Canadian authorities arrested Alexander Moucka, a.k.a. Connor Riley Moucka of Kitchener, Ontario, on a provisional arrest warrant from the United States. Bloomberg first reported Moucka's alleged ties to the Snowflake hacks on Monday. At the end of 2023, malicious hackers learned that many large companies had uploaded huge volumes of sensitive customer data to Snowflake accounts that were protected with little more than a username and password (no multi-factor authentication required). After scouring darknet markets for stolen Snowflake account credentials, the hackers began raiding the data storage repositories used by some of the world’s largest corporations.

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).

A new malware called Cuttlefish is targeting small office and home office (SOHO) routers with the goal of stealthily monitoring all traffic through the devices and gather authentication data from HTTP GET and POST requests

A new modular toolkit called 'AlienFox' allows threat actors to scan for misconfigured servers to steal authentication secrets and credentials for cloud-based email services. [...]

Cloud communications giant Twilio, the owner of the highly popular two-factor authentication (2FA) provider Authy, says that it has so far identified 125 customers who had their data accessed during a security breach discovered last week. [...]

Cloud-based repository hosting service GitHub on Friday shared additional details into the theft of GitHub integration OAuth tokens last month, noting that the attacker was able to access internal NPM data and its customer information

Heroku has now revealed that the stolen GitHub integration OAuth tokens from last month further led to the compromise of an internal customer database. The Salesforce-owned cloud platform acknowledged the same compromised token was used by attackers to exfiltrate customers' hashed and salted passwords from "a database." [...]

Heroku has now revealed that the stolen GitHub integration OAuth tokens from last month further led to the compromise of an internal customer database. The Salesforce-owned cloud platform acknowledged the same compromised token was used by attackers to exfiltrate customers' hashed and salted passwords from "a database." [...]

Cloud-based code hosting platform GitHub described the recent attack campaign involving the abuse of OAuth access tokens issued to Heroku and Travis-CI as "highly targeted" in nature

Cloud-based repository hosting service GitHub on Friday revealed that it discovered evidence of an unnamed adversary capitalizing on stolen OAuth user tokens to unauthorizedly download private data from several organizations