SOC 1 stemmed from the original SAS 70 report, which, once SSAE 16 was issued in April 2010, the formal report name was changed to being a SOC 1 report (but issued under the SSAE 16 guidance) and effective as of June 2011. SSAE 18 was then issued May 2017 and will be effective as of December 2018, and apply to all SOC 1 reports issued thereafter.
What are the SOC 2 criteria?
The five SOC 2 criteria are Security, Availability, Processing Integrity, Confidentiality, and Privacy.