Steam introduces Limited User Accounts: what you need to know

 By Martin Brinkmann
 
It is easy enough to create a Steam account. Just visit the official website to create an account, verify your email address and you are in. What's left then is to download the Steam client for your system and sign in using it.
Since money is involved on Steam, for instance in form of Steam Wallets but also virtual currency in form of in-game items, phishing and account hacking is quite common as well.
Since there is no real verification of accounts initially, other than confirming an email address, malicious users were not really restricted when it came to the creation of accounts, sending out friend requests and to carry out attacks.
This changes, hopes Valve Software, with the introduction of Limited User Accounts on Steam. All new accounts on Steam are limited by default until certain requirements are met.
 
 http://www.ghacks.net/2015/04/20/steam-introduces-limited-user-accounts-what-you-need-to-know/   
 
edit: Sorry again Jasper, despite searching didn't locate your earlier thread: https://community.webroot.com/t5/Security-Industry-News/Steam-now-restricts-accounts-to-protect-against-spam-and/m-p/197784#M14838