Highly doubtful much of anything majorly sensitive got leaked. Firstly even unclassified DoD emails are encrypted by default. Secondly anything classified isn’t even on a network that can talk to normal email, it’s either 100% point to point encrypted or on an airgapped network. If I hopped on SIPR (DoD Secret-level internet) and emailed a normal email address it simply wouldn’t work.
Highly doubtful much of anything majorly sensitive got leaked. Firstly even unclassified DoD emails are encrypted by default. Secondly anything classified isn’t even on a network that can talk to normal email, it’s either 100% point to point encrypted or on an airgapped network. If I hopped on SIPR (DoD Secret-level internet) and emailed a normal email address it simply wouldn’t work.