If you find a website or software promising a key generator for 600 EA games, you are likely encountering one of three things:

If you want to play a huge variety of EA games without paying full price for each, there are safe, legal ways to do it:

Many "keygens" are actually Trojans or ransomware. Once you run the .exe file, it can steal your browser passwords, personal data, or lock your computer.

Every legitimate product key is a unique string stored in EA's central database. When you enter a code on the EA App (formerly Origin), the software checks that database. If the code wasn't officially issued, it simply won't activate.