External Backinks To Website for SEO

I have a new client site that has 3,480,923 external backlinks to the company site. I suspect BlackHat SEO has been done previously. Should I be unduly worried?
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Lucas BishopClick TrackerCommented:
Ultimately, if this was overly damaging, you could simply go purchase a ton of blackhat backlinks to a competitors web site and watch them drop in rankings.

The only thing to be concerned with is if the site is currently ranking well due to blackhat links, those rankings are not likely to be stable.

If there is an on-page blackhat agenda, I'd quickly resolve that, as that will surely get your site banned.
Jason C. LevineDon't talk to me.Commented:
if this was overly damaging, you could simply go purchase a ton of blackhat backlinks to a competitors web site and watch them drop in rankings.

This does exist, FYI

Should I be unduly worried?

Depends.  If Webmaster Tools reports a manual penalty, then yes...be worried.

If not and if your site is otherwise doing well, then no.  But if other blackhat dirty tricks are being used per Lucas' answer...be very worried.
Lucas BishopClick TrackerCommented:
If Webmaster Tools is alerting you to unnatural back-links you may want to get to work disavowing, to show you're working within their guidelines. Otherwise, I'd take the road of ignoring these links and get to work on a positive road.

This does exist, FYI
Yes, but extremely rarely and is mostly ineffective.

The only time I would be concerned with negative SEO is if I was managing a site in an industry that has 'spam' related indicators associated with it (gambling, pharma, insurance, loan, etc.).  Many sites in these industries already have a high-risk factor associated with them, so pointing bad links can increase that negative factor and cause google to lose trust in the site.

However, if you're running a web site for a Bed & Breakfast and google sees there are a bunch of inbound links on the web pointing at you from unrelated sites, the likelihood of your rankings being effected is extreeeeeemely low. In fact, you may actually see a temporary boost and then a subsequent drop in rankings for the effected keywords.  If a competitor wants to test this technique out on my site, I say bring it on! :)

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