Abstract: A blockchain enhanced layered and integrated cyber security method and system. In one embodiment, a method of cybersecurity monitoring, the steps comprising: performing a security analysis of an information system, wherein the security analysis comprises a plurality of security criteria; (b) creating a plurality of security hash values associated with each of the plurality of security criteria; (c) generating a baseline master hash comprising an amalgamation of the plurality of security hash values; (d) submitting the baseline master hash to a blockchain ledger; (e) revalidating the information system after a revalidation epoch; and (f) repeating step (e) over successive revalidation epochs to monitor the information system for hash mismatches.