Sharon Osbourne Getting Death Threats Since 'Talk' Racism Dispute, Hires Security

Sharon Osbourne and her family -- including her dogs -- have been receiving death threats since her dust-up on "The Talk" ... so she's hired her own security.

Sources close to Sharon tell TMZ ... following last week's on-air dispute with co-host Sheryl Underwood over defending Piers Morgan and his harsh comments about Meghan Markle, Sharon's been bombarded by angry folks on social media and she's received several calls to her home threatening her safety.

Sharon's social media has been flooded with comments like, "Die and go to hell." "F**k Sharon Osbourne, her husband, her momma, them ugly f**kin' kids, the family dog and the b***h that lives next door. She can go die in a fish grease fire" and "I hope Sharon Osbourne gets hit by one last wave of COVID & dies."

We're told Sharon's personal phone numbers have also been blowing up, wishing harm on her and her dogs.

The private security company's been stationed outside the Osbournes' L.A.-area home all week to keep an eye on things.

Meanwhile, Sharon's turned off comments on her most recent couple of Instagram posts because they were so nasty.

As for the issues over at "The Talk" -- which went on hiatus following Sharon and Sheryl's contentious exchange -- we're told Sharon's still reeling from it ... but she's hopeful there can be a reconciliation at some point and she can return to a peaceful environment.

As we reported ... Sharon fired off an apology for offending or disappointing people of color with her words, but explained she "panicked, felt blindsided, got defensive & allowed my fear & horror of being accused of being racist take over."

Our sources say Sharon and Sheryl have not spoken since last week, and Osbourne has also not had any contact with CBS or 'Talk' honchos while they are conducting their investigation.