that the Russian-linked group known as Midnight Blizzard or Nobelium has made repeated attempts to access Microsoft’s systems in recent weeks, escalating its efforts against Microsoft since the company first disclosed in January that Midnight Blizzard hadThe group first launched its attack on Microsoft in November, with the company disclosing in January that the group had successfully used a “password spray attack,” trying a large number of potential passwords on known accounts, to finally...
Microsoft says that Midnight Blizzard has increased the volume of its attacks “by as much as 10-fold” compared to what the company had already seen in January. While Microsoft maintains that none of its customer-facing systems have been compromised, it noted that Midnight Blizzard may have accessed some emails between customers and Microsoft, and Microsoft has begun reaching out to affected customers.