The IPAWS RWT for the week of January 11—17 did not send correctly, so this was a true test of your EAS device.

From the FEMA:

“We discovered after the IPAWS RWT chron job launched the Monday morning IPAWS RWTs that the associated IPAWS digital certificate in use had expired. As individual EAS devices are required by FCC Rules to check CAP message digital signatures, the EAS device should have flagged the incoming RWT as expired. Let’s consider this week to be a test of EAS device security. We have replaced the expired digital certificate. Next week’s messages will be properly signed with a valid digital certificate.”

For that week, you should have received an error about the lack of certificate, or received no RWT from IPAWS at all. If you received a valid RWT, you have a validation issue. Log the exception and pat yourself on the back.