DETECTION OF CYBER ATTACKS FROM HIGH-FREQUENCY HASHED INCORRECT PASSWORDS

摘要

Response to incorrect passwords being entered for usernames in attempts to access a computing system, each incorrect password is one-way hashed. The hashed incorrect passwords are stored within a database. High-frequency hashed incorrect passwords are determined from the stored hashed incorrect passwords. Each high-frequency hashed incorrect password corresponds to an incorrect password that was entered more than a threshold number of the attempts, regardless of the username for which the incorrect password was entered in any attempt. That the computing system is being subjected to a cyber attack is detected based on the determined high-frequency hashed incorrect passwords.