Latest cybersecurity reporting from selected sources.

Microsoft Threat Intelligence identified threat actor activity with overlapping tradecraft commonly associated with ShinyHunters, including voice phishing (vishing), supply-chain compromise, and misconfigured guest access targeting SaaS-based applications. The post Defending SaaS-based applications against ShinyHunters OAuth abuse appeared first on Microsoft Security Blog.

A new data-extortion group called Helix is using identity-focused tactics such as voice phishing (vishing), device code phishing, and multi-factor authentication (MFA) abuse to steal data from SharePoint environments. [...]

Salesforce has revealed that it disabled the Klue Battlecards app integration within its platform in response to a security incident impacting the competitive intelligence company on June 11, 2026

Investigators Found Months of Unchecked Database Scraping ActivitySouth Korea's privacy regulator fined Coupang a record 624.7 billion won after concluding that weak authentication controls, insider access abuse, evidence destruction and unauthorized data collection contributed to the exposure of personal information belonging to 33.7 million people.

A newly discovered local privilege escalation vulnerability dubbed 'CIFSwitch' in the Linux kernel could allow attackers to forge CIFS authentication key descriptions, abuse the kernel's key request mechanism, and gain root privileges. [...]

A new attack type, dubbed ConsentFix v3, has been circulating on hacker forums, building on the previous technique by adding automation and scaling potential. [...]

CEO suspects silicon sidekick behind 'surprising velocity' breach - cyber crims shop stolen data for $2M Vercel's CEO reckons the crooks behind its recent breach likely had a helping hand from AI, saying the attackers moved with "surprising velocity" and a deep understanding of the company's infrastructure.…

Device code phishing attacks that abuse the OAuth 2.0 Device Authorization Grant flow to hijack accounts have surged more than 37 times this year. [...]

Cybersecurity researchers are calling attention to an active device code phishing campaign that's targeting Microsoft 365 identities across more than 340 organizations in the U.S., Canada, Australia, New Zealand, and Germany

Organizations typically roll out multi-factor authentication (MFA) and assume stolen passwords are no longer enough to access systems. In Windows environments, that assumption is often wrong. Attackers still compromise networks every day using valid credentials. The issue is not MFA itself, but coverage.  Enforced through an identity provider (IdP) such as Microsoft Entra ID, Okta, or

Hackers are abusing the legitimate OAuth redirection mechanism to bypass phishing protections in email and browsers to take users to malicious pages. [...]

Microsoft on Monday warned of phishing campaigns that employ phishing emails and OAuth URL redirection mechanisms to bypass conventional phishing defenses implemented in email and browsers

Crims hope for payday from malicious payloads rather than stealing access tokens Microsoft has warned organizations about ongoing OAuth abuse scams that use phishing emails and URL redirects to infect victims' machines with malware and take over their devices.…

Most phishing websites are little more than static copies of login pages for popular online destinations, and they are often quickly taken down by anti-abuse activists and security firms. But a stealthy new phishing-as-a-service offering lets customers sidestep both of these pitfalls: It uses cleverly disguised links to load the target brand's real website, and then acts as a relay between the target and the legitimate site -- forwarding the victim's username, password and multi-factor authentication (MFA) code to the legitimate site and returning its responses.

Threat actors are targeting technology, manufacturing, and financial organizations in campaigns that combine device code phishing and voice phishing (vishing) to abuse the OAuth 2.0 Device Authorization flow and compromise Microsoft Entra accounts. [...]

New NSA Guidance Demands Continuous Access Checks, Implementation OverhaulThe National Security Agency's new zero trust guidance instructs agencies to move beyond login-based security by continuously assessing user behavior and app-layer activity in real time, aiming to close gaps that allow post-authentication abuse and elevate federal defenses against modern threats.

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. [...]

Fortinet on Wednesday said it observed "recent abuse" of a five-year-old security flaw in FortiOS SSL VPN in the wild under certain configurations

Criminals don’t need to be clever all the time; they just follow the easiest path in: trick users, exploit stale components, or abuse trusted systems like OAuth and package registries. If your stack or habits make any of those easy, you’re already a target

GitHub on Monday announced that it will be changing its authentication and publishing options "in the near future" in response to a recent wave of supply chain attacks targeting the npm ecosystem, including the Shai-Hulud attack