Cyber-security industry infiltration prevention tools (antivirus, firewalls, sandboxes, etc.) have largely failed, resulting in threat actors compromising the network. enSilo, the leading provider of a real-time data protection platform focusing on preventing data tampering and exfiltration, announced today that it closed the second tranche of its Series A financing, raising a total of $19 million for the round and $21 million in total funding.