During our investigation, we found a small number of computers, including some in our Mac business unit, that were infected by malicious software using techniques similar to those documented by other organisations.
We have no evidence of customer data being affected and our investigation is ongoing.
This type of cyberattack is no surprise to Microsoft and other companies that must grapple with determined and persistent adversaries.
More top news
The couple's tweet was composed using a Morse code telegraph machine during a visit to a Canadian museum.
The most senior lawyer on the national probe into child sexual abuse, has been suspended from duty over leadership concerns.
Here are my post conference thoughts on the state of Labour.