Twilio has denied in a statement for BleepingComputer that it was breached after a threat actor claimed to be holding over 89 million Steam user records with one-time access codes.

The threat actor, using the alias Machine1337 (also known as EnergyWeaponsUser), advertised a trove of data allegedly pulled from Steam, offering to sell it for $5,000.

When examining the leaked files, which contained 3,000 records, BleepingComputer found historic SMS text messages with one-time passcodes for Steam, including the recipient's phone number.

Owned by Valve Corporation, Steam is the world's largest digital distribution platform for PC games, with over 120 million monthly active users.

Valve did not respond to our requests for a comment on the threat actor's claims.

Independent games journalist MellolwOnline1, who is also the creator of the SteamSentinels community group that monitors abuse and fraud in the Steam ecosystem, suggests that the incident is a supply-chain compromise involving Twilio.

MellowOnline1 pointed to technical evidence in the leaked data that indicates real-time SMS log entries from Twilio's backend systems, hypothesizing a compromised admin account or abuse of API keys.

A new threat actor is exploiting privileged access in the SMS supply chain to intercept OTP codes and other messages.

Silk Typhoon is a Chinese state actor focused on espionage campaigns targeting a wide range of industries in the US and throughout the world. In recent months, Silk Typhoon has shifted to performing IT supply chain attacks to gain access to targets. In this blog, we provide an overview of the threat actor along with insight into their recent activity as well as their longstanding tactics, techniques, and procedures (TTPs), including a persistent interest in the exploitation of zero-day vulnerabilities in various public-facing appliances and moving from on-premises to cloud environments.

In this article, I explained how I could compromise the sysupgrade.openwrt.org service by exploiting the command injection and the SHA-256 collision.
As I never found the hash collision attack in a real-world application, I was surprised that I could successfully exploit it by brute-forcing hashes.

The popular Ultralytics YOLO11 AI model was compromised in a supply chain attack to deploy cryptominers on devices running versions 8.3.41 and 8.3.42 from the Python Package Index (PyPI)  

Google said it has been contacted by several major U.S. companies recently who discovered that they unknowingly hired North Koreans using fake identities for remote IT roles.

Imagine this: an OpenSSH backdoor is discovered, maintainers rush to push out a fixed release package, security researchers trade technical details on mailing lists to analyze the backdoor code. Speculation abounds on the attribution and motives of the attacker, and the tech media pounces on the story. A near miss of epic proportions, a blow to the fabric of trust underlying open source development, a stark reminder of the risks of supply-chain attacks. Equal measures brilliant and devious.

We discovered 4 critical code vulnerabilities in Gogs, a source code hosting solution, which are still unpatched. Read about the details and how to protect yourself.

The supply-chain cyberattack that targeted Progress Software’s MOVEit Transfer application has compromised over 963 private and public-sector organizations worldwide. The ransomware group, Cl0p, launched this attack campaign over Memorial Day weekend.

Some higher-profile victims of the hack include Maximus, Deloitte, TIAA, Ernst & Young, Shell, Deutsche Bank, PricewaterhouseCoopers, Sony, Siemens, BBC, British Airways, the U.S. Department of Energy, the U.S. Department of Agriculture, the Louisiana Office of Motor Vehicles, the Colorado Department of Health Care Policy and Financing, and other U.S. government agencies. Thus far, the personal data of over 58 million people is believed to have been exposed in this exploit campaign.

The US government warns encryption chipmaker Hualan has suspicious ties to China’s military. Yet US agencies still use one of its subsidiary’s chips, raising fears of a backdoor.

It was late 2019, and Adair, the president of the security firm Volexity, was investigating a digital security breach at an American think tank. The intrusion was nothing special. Adair figured he and his team would rout the attackers quickly and be done with the case—until they noticed something strange. A second group of hackers was active in the think tank’s network. They were going after email, making copies and sending them to an outside server. These intruders were much more skilled, and they were returning to the network several times a week to siphon correspondence from specific executives, policy wonks, and IT staff.

FortiGuard Labs highlights how a digitally signed 3CX desktop app was reportedly used in a supply chain attack against 3CX Voice over Internet Protocol (VoIP) customers. Check back for analysis and coverage updates.

A digitally signed and trojanized version of the 3CX Voice Over Internet Protocol (VOIP) desktop client is reportedly being used to target the company's customers in an ongoing supply chain attack.

BMC&C Eclypsium Research has discovered and reported 3 vulnerabilities in American Megatrends, Inc. (AMI) MegaRAC Baseboard Management Controller (BMC) software. We are referring to these vulnerabilities collectively as BMC&C. MegaRAC BMC is widely used by many leading server manufacturers to provide “lights-out” management capabilities for their server products. Server manufacturers…

Software Delivery Shield, a software supply chain security solution, can enhance the security posture along the supply chain from dev to production.

Via timing attacks, threat actors create phony public npm packages masked as private ones to deceive developers into downloading compromised packages

Checkmarx discovered ~200 malicious NPM packages with thousands of installations linked to an attack group called “LofyGang”.

We recently discovered a vulnerability in Composer, the main package manager for PHP, and were able to use it to take over the central repository, packagist.org.

Software developers using GitLab CI are being targeted with malware through a typosquatting attack, putting downstream users at risk.