Yahoo and Microsoft Corp web search engines went dull for a brief period of time on Friday after Microsoft pushed out a bad code update and afterward attempted to restore it, a person briefed on the blackouts told Reuters.

Bad Code Update Caused Yahoo And Bing Searches To Crash Later Restored Same Day:

The blackouts were not brought about by any cyber assault, the person said, declining to be named in light of the fact that the talk concerned interior Yahoo matters.

Microsoft’s Bing web search engine powers the Yahoo search under a 10-year settlement declared in 2009. Yahoo Inc was not quickly accessible for comment. Microsoft affirmed the blackout, however, declined to remark on the reason.

On Friday evening, clients who wrote search.yahoo.com got a message saying that there is an issue and Yahoo is working to fix it up. Later that day everything fixed up and was back working again as previous.

After the incident, Microsoft’s rollback procedure failed, driving it to close down its group of connected servers to get back to the point where everything worked fine, that person mentioned.