Harmless one-way links: Scan inbound links in email messages and files for malicious URLs, and block or substitute them having a Secure hyperlink. Multifactor authentication: Protect against unauthorized usage of methods by requiring people to supply more than one kind of authentication when signing in. Litigation hold: Preserve and retain https://www.nathanlabsadvisory.com/blog/nathan/how-to-achieve-pci-dss-compliance-certification-in-the-usa-quickly/