CACI: 384 Email Addresses and Passwords Exposed. Yours Might Be One.

HEROIC found 384 records from CACI, a U.S. government contractor specializing in advanced analytics and defense intelligence, leaked on December 1, 2023. The exposed data included employee email addresses and password hashes, suggesting a direct compromise of an internal database. Given CACI's role in national security and defense contracting, even a small credential leak carries serious consequences for the people involved.

Why Government Contractor Credentials Are Particularly Dangerous

CACI works closely with U.S. federal agencies on cyber intelligence and signals processing. Employee credentials from this kind of organization are partcularly valuable to attackers, whether they are looking to access internal systems, impersonate staff, or target clients of the organization. A leaked email and password hash from a defense contractor is not just a personal problem. It can open doors into sensitive networks and contracts.

What Was Exposed

• Email Address
• Password Hash

Why This Matters

Even though passwords were stored as hashes rather than plain text, this does not mean you are safe. Hackers use powerful tools to crack hashed passwords, especially common or short ones. Once cracked, those passwords can be used to break into email accounts, corporate systems, and any other service where the same password was reused. This kind of breach opens the door to account takeover, credential stuffing attacks across many sites, and potential identity theft if enough personal details are combined.

How a Database Breach Works

A database breach occured when an attacker gains unauthorized access to the system where a company stores its data. This can happen through a software vulnerability, a weak or stolen password, or a misconfigured server that was accidentally left accessable to the public. Once inside, the attacker copies the data and often sells it on dark web forums or uses it directly for fraud. Organizations sometimes do not discover the breach until the data has already been recieved by multiple criminal groups.

Check If You Are Affected

HEROIC operates one of the largest breach monitoring databases in the world, with over 400 billion records indexed. If your email was part of the CACI breach or any other known leak, you can find out right now. Visit heroic.com to scan your email address against our database and get a full report on your exposure. It takes seconds and could protect you from a serious attack.