Cybersecurity researchers have noticed a rise in several new phishing scam strategies in which attackers are successfully outsmarting current spam filters. One of these tactics is conversation-hijacking, a more involved method than simple spamming. It involves the attacker first compromising an existing email account at the target company. The attacker silently scans emails in the compromised inbox to gain intel, then poses as an employee via a compromised account to reach out to business contacts and try to get them to give up information or download malware. More about this type of scam on ZDNet.