Protect your personal information and check to see if you need to renew
Remember last summer when we urged you to start using digital signatures to secure your email messages? Many of you followed our advice, and we thank you.
If you created a digital signature before October 3, 2016, your certificate was only good for one year—which means you’ll need to renew it soon. (If you created it after that date, your certificate lasts for three years.)