Best Data Breach and Data Leak Detection Tools in 2026
In 2023, a single-file-transfer vulnerability enabled attackers to access hundreds of organizations simultaneously. Not only did they steal data, they immediately posted it to dark web extortion sites before most victims even knew they'd been hit. It was the MOVEit Transfer breach, and it exposed a gap that most corporate security stacks still haven't closed: the difference between stopping an attacker inside your network and finding your data after it's already left your network.