The Thrift Savings Plan (TSP) is reminding participants that two-step authentication is becoming mandatory in December to log into their accounts online.
“All TSP participants must have validated contact information and use two-step authentication to log into My Account beginning December 2019,” the TSP said. “You can avoid interruption to your account access by adding these security features in your My Account Profile Settings now.”
Two-step authentication helps protect a participant’s account against fraud. “This login process is more secure because it means that online access to your account requires something you know (your account number or username and password) and something you have (the one-time code you receive in your email or on your phone), ” the TSP said. “Someone who tries to log into your account fraudulently won’t be able to gain access without the code.”
The TSP has provided a instruction sheet to download here (8-page PDF):
How to validate your contact information and enable two-step authentication in My Account on tsp.gov