Credential stuffing is a type of cyberattack where attackers use stolen username and password combinations, often obtained from previous data breaches, to gain unauthorized access to multiple online accounts. The attacker automates the process of trying these combinations across various websites, hoping that users have reused the same login details.

As 2024 has wrapped up, we went around the room and asked some of Trustwave’s top executives what cybersecurity issues and technology they saw playing a prominent role in 2025. I'm willing to go on a limb this year and say there is an excellent chance we will see the first fully autonomous and end-to-end malware, ransomware, or other cyberattack campaigns take place.

Many common password attack methods are quite straightforward — much like trying various physical keys to open the lock on a door. For example, in brute force attacks, adversaries systematically guess passwords until they find the correct one. Or instead of simply guessing, they can use a list of username/password combinations leaked from other breaches (credential stuffing) or cycle through known usernames combined with commonly used passwords (password spraying).

Earth Koshchei executes rogue RDP attacks, Zscaler releases technical details about RiseLoader malware, and Corvus issues a ransomware advisory.