Credit:
An unusual mistake on the part of Google this morning: the search engine reported, for a short spell at least, that every site on the web "may harm your computer". Reports from Twitter suggest the issue was global and lasted perhaps 20 minutes.
It's interesting to consider the potential economic losses to companies: with Google reportedly serving "millions of searches per minute", users being encouraged not to click on search results for even a short period could have a significant impact.
The issue is now resolved, and we'll await Google's explanation of why such a massive error would occur.