The Russian hackers behind the SolarWinds campaign have escalated their attacks on US federal agencies, think tanks and non-governmental organisations as part of intelligence gathering efforts on behalf of their government, Microsoft Corp said late on May 27.
In a blog post, Microsoft vice-president Tom Burt said this past week’s attack – which is still ongoing – granted access to about 3,000 email accounts at more than 150 organisations by infiltrating an digital marketing service used by the US Agency for International Development (USAID), called Constant Contact.