US Patent 11042636 Using trap storage units to detect malicious processes

Provided are a computer program product, system, and method for detecting potentially malicious code in a host system accessing data from a storage. A trap storage unit is configured for data in the storage and the trap storage unit is indicated as a trap. Storage units are configured for data in the storage that are not indicated as a trap. A request is received to access the trap storage unit from a process executing in a host system. Notification is returned to the host system that the process requesting to access the trap storage unit is a potentially malicious process.