**Second: Arrive early.**
Give yourself more time than you normally would.
**Third: Keep your documents and belongings organized.**
This can make the process easier.
**Fourth: Cooperate with security personnel.**
Listen carefully and ask questions if you don’t understand something.
Those simple steps can turn an intimidating surprise into a manageable part of your travel day.
## The Bottom Line
Seeing **SSSS** on your boarding pass can be unsettling, especially if you’ve never encountered it before.
But the four letters do not automatically mean that you’ve done something wrong.
They indicate that you’ve been selected for **Secondary Security Screening Selection**.
That means you should expect additional security procedures before your flight.
The exact experience can vary, and travelers aren’t necessarily given a detailed explanation of why they were selected.
That’s part of what makes the process frustrating.
Still, the best response isn’t fear.
It’s preparation.