Hashcat is the world's fastest open-source password recovery utility. It utilizes your computer’s GPU (Graphics Processing Unit) to try millions of password combinations per second. .mdb and .accdb Speed: Extremely fast (dependent on hardware) Pros: Highly powerful; completely free; open-source.

. You will need to extract the "hash" from the Access file and then run it against a wordlist. Identify the File Extension: Higher chance of success with simple freeware.