Spam is the abuse of electronic messaging systems to indiscriminately send unsolicited bulk messages. Email does not cost SPAMMERS anything to send. All they need is access to an open mail-relay in order to send.
Your business needs to take proactive measures today to first reduce its chances of being hit by ransomware, phishing, or other cybersecurity attacks. Secondly, validate backups and disaster recovery plans are current and functioning in case you end up hit with ransomware. CyberHoot recommends the following best practices to avoid, prepare for, and prevent damage from these attacks:
Start building your robust, defense-in-depth cybersecurity plan at CyberHoot.
Source: CNSSI 4009