Is Leakage of Steam Login ID and Profile URL a Significant Security Risk Given My Current Setup?

Questions
1

Hi everyone,

I recently discovered that my Steam Profile URL and Login ID have been leaked and archived on several third-party websites. I am concerned about whether this exposure poses a real-world threat to my account’s security.

To mitigate any risks, I have already implemented the following security measures:

  • Credential Security: My password is a completely random 20+ character string (including uppercase, lowercase, numbers, and special symbols). It is unique and not used anywhere else.

  • Two-Factor Authentication: Steam Guard (Mobile Authenticator) is active on my account.

  • System Protection: My PC is protected by ESET Smart Security.

  • Email Security: My Steam account is linked to a dedicated email address that is entirely unrelated to my Steam Login ID. This email also uses a high-entropy password and 2FA/OTP.

  • Phishing Prevention: I use Mozilla Thunderbird with strict mail filters to ensure only official Steam domains reach my primary folder. I have also enabled DKIM, SPF, and DMARC verification to detect spoofed emails.

Given that my primary defense layers (20-char random password + OTP + Email isolation + ESET) are so robust, how significant is the risk of having just the Login ID and Profile URL exposed? Are there any “edge case” attack vectors I should be aware of, or is this leak effectively neutralized by my current setup?

I look forward to your professional insights. Thanks!

2

Your Steam profile URL and various forms of your SteamID are public. Your login name is not public by default, so if it’s exposed it was likely obtained via a phishing page or because you used it previously as a username.

You can change your profile URL, username, or privacy settings in Steam, but anyone can still view your current username and profile image by visiting steamcommunity [dot] com/id/{steamID64}.
If a third-party service has linked your profile URL or login name to your SteamID (they often do), it’s easy for someone to look up and view your current name and profile history later, even if you remove that information on Steam, by getting your public SteamID and running it through those sites.

You’re probably reasonably safe: an attacker would need to be highly motivated to attempt a login. Steam typically prompts for email confirmation or 2FA on new sign-ins, which makes unauthorized access unlikely. However, note that profile history is public and third-party sites may not remove the linked data.

2 Likes
3

The third-party sites that collect this information come and go frequently. I would change profile name and custom profile-url to something different than your login name.

On your profile page you have a drop-down with your profile name history with a clear button. If not visible they only save the last 5-10 or so profile names (Can’t remember exact number). So iterate until the old one is gone.

This is what i did years ago. Now when doing some searches on these sites or search-engines, i don’t really find any of the historical data from my profile.