Much discussion has been had about the fact that hackers are becoming increasingly sophisticated, and their methods ever-increasing in their complexity. While that's certainly true, more complex isn't always better.
Take, for example, the malware called Separ, which is a credential-siphoning bit of code, first detected in late 2017.
Separ has benefitted from ongoing development by the hackers controlling it, but what sets it apart from other malware strains is that it's almost deceptively simple, and that simplicity is a big part of its success.