Talos presentation

VPNFilter

Remote Access ISE

ASA does the auth part, authorization is passed over to ISE

Double certificate authentication

Certificate pinning

Duo security

Yubico two factor key

SPF, txt dns record to approve which IP's may send emails, https://mxtoolbox.com/

DKIM, asymetric key for autheticating the messeages https://community.sophos.com/kb/en-us/115300

DMARC, new standard for mail security, you will be informed when your domain will be misused.

pejaime.com descriptive text "v=smtp mx -all"
pejaime.com descriptive text "v=spf1 a mx ip4:94.177.231.24 -all"