We have been hit with 500,000 (and growing) backlinks that have appeared in two weeks. We will make removal requests and disavow but Google has issued a manual penalty even though this is not our or our SEO company's doing.
Just spoke to a competitor who had the same issue over the last two months, with the same backlink sources and they ranked on page 1 as well. They had to change domain. This seems to indicate a competitor has of ours has done this.
Is it possible to trace the source of these attacks, who carried them out?