I have become aware of the practice of some spammers to send spam comments to blog postings about various Internet security companies with links to fake sites pretending to be the security company This is a variation of the usual email phishing, where the spammer tries to put spam comments on blogs with fake links.
Comment moderation (or use of services like Akismet) should stop this.
In one case, Google comment moderation warned me on a comment with a hidden link to “webrootsupportphone dot com”. I have reported this to the company but it appears not to be legitimate.
This probably happens with all major security companies.