Inexperience. These ransomwares aren't written by good programmers. They're put together like lego by people who have barely graduated from copy-paste script ki

Inexperience. These ransomwares aren't written by good programmers. They're put together like lego by people who have barely graduated from copy-paste script kiddie level. For example it's pretty common that botnet C&C systems have basic SQL injection vulnerabilities etc. These people aren't security gurus, they just wait until there's a proof of concept exploit of some public vulnerability posted on a hacking forum/chat and then plug that into their prepackaged ransomware kit.