If you're a team owner, you can edit your team's data security classification by going to the team name and clicking More options
![Edit team dialog box](https://cxcs.microsoft.net/static/public/central/neutral/a0587552-c816-488e-8055-e93c9a9be9d5/8ad334054dec477e6ea576277a68a32dab099f14.png)
If you're a team owner, you can edit your team's data security classification by going to the team name and clicking More options