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.

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. [...]

An emerging threat actor that goes by "Zestix" used an assortment of infostealers to obtain credentials and breach file-sharing instances of approximately 50 enterprises.

Terabytes of Data Stolen From Cloud-Based Collaboration Tools, Researchers WarnDozens of organizations that use real-time content collaboration platforms appear to have lost not only credentials but also terabytes of hosted data to information-stealing malware being wielded by an initial access broker with a sideline in auctioning large volumes of stolen data.

Crim used infostealer to get cloud credentials If you don't say "yes way" to MFA, the consequences can be disastrous. Sensitive data belonging to about 50 global enterprises is listed for sale – and, in some cases, has already been sold – on the dark web following a major infostealer campaign, with apparent victims including American utility engineering firm Pickett and Associates; Japan's homebuilding giant Sekisui House; and Spain's largest airline Iberia.…

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.

A threat actor has accessed data belonging to at least 165 organizations using valid credentials to their Snowflake accounts, thanks to no MFA and poor password hygiene.

Microsoft on Thursday warned of a consumer-facing attack that made use of rogue OAuth applications on compromised cloud tenants to ultimately seize control of Exchange servers and spread spam