 NORWALK, Conn.--BUSINESS WIRE-- DattoMSP--Datto Holding Corp. Datto NYSE: MSP, the leading global provider of cloud-based software and security solutions purpose-built for delivery by managed service providers MSPs, today reintroduced its Virtual SIRIS vSIRIS data protection software. Delivered as a virtual appliance, this software-only version of the industry-leading Datto SIRIS solution provides MSPs with the flexibility to meet the diverse data protection requirements of their small and med 