Spam is one of the most prevalent forms of personal security breaches. The aim of most spam campaigns is to distribute malicious software to harvest credentials. Spam can have a much bigger effect than a low-level inbox annoyance. Cyber security industry spends a lot of time discussing how best to defend against malware. Most people can tell when an email is not genuine, but the number of people can fall for phishing attacks is not the first place for people to fall for those who fall prey.”]
Source: https://informationsecuritybuzz.com/articles/dont-underestimate-power-spambots/