How to Secure a Steam Account:

Verify Account Ownership
Check the account creation date and ensure the registration email matches the account. If they match, you likely have the original email linked to the account.

Change the Password
After logging in, click your nickname in the top-right corner and select "Account Details." Scroll down to find the option to change your password.

Change the Email
While it’s safer to keep the account linked to the original email, you can modify it in the "Account Details" section if needed.

Set Up Steam Guard Mobile 2FA
Add a mobile number for added security. Enable Steam Guard Mobile to receive authentication codes via the Steam app. Deauthorize all devices to ensure there’s no unauthorized access.

Collect Additional Information
Request a list of CD keys used on the account and the last four digits of the credit/debit card used for future recovery. Verify purchases through the "Account Details" section.

Community Locks/Bans
Steam may flag your account as stolen if it receives multiple reports. Provide as much proof of ownership as possible. It’s recommended that the original owner submit recovery tickets from their IP address.

Additional Tips:
1. Be cautious with temporary emails, and ensure you fully trust the seller, as they can potentially reclaim the account.
2. Keep detailed records of email changes, CD key activations, payment methods, credit card purchases (date, location, cardholder's name, last 4 digits).
3. This information may be necessary for account recovery.

✈️ @Guide