Advanced persistent threats (APT) have emerged as a new class of malware threat in recent years. Despite the aura of skill and complexity that seems to surround APTs, they are much less sophisticated than theyre given credit for. The APT groups are lacking in quality assurance and are able to work with what they have to infect their targets. The biggest silver lining of the report is that it shows that vulnerability management and timely patch deployment would be sufficient to protect against most attacks.”]
Source: https://www.csoonline.com/article/2879492/most-apts-are-not-so-sophisticated-after-all.html