technical support scams
... that Microsoft has banned all third-party tech-support advertisements on Bing due to a rise in technical support scams?
... that <a href="./Microsoft" id="mwBZU" rel="mw:WikiLink" title="Microsoft">Microsoft</a> has banned all third-party tech-support advertisements on <a href="./Microsoft_Bing" id="mwBZY" rel="mw:WikiLink" title="Microsoft Bing">Bing</a> due to a rise in <b id="mwBZc"><a href="./Technical_support_scam" id="mwBZg" rel="mw:WikiLink" title="Technical support scam">technical support scams</a></b>?