She also said she was leaving Twitter.
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Officials say VPNFilter is able to renter routers inoperable, and can potentially collect information passing through the router. Security firms have published lists of affected routers , but this should by no means be considered a comprehensive collection.
As well as two further apologies to Jarrett, Barr released a statement on Twitter, which read: "I deeply regret my comments from late last night on Twitter".
ABC responded by canceling her massively successful revival and its Emmy "For Your Consideration" campaign, while talent agency ICM dropped Barr as a client and Viacom networks Paramount Network, TV Land and CMT canceled upcoming reruns of the revival series.
"I support ABC's decision to cancel the show in the wake of Roseanne Barr's most recent reprehensible tweets. Forgive me - my joke was in bad taste", she tweeted.
Lemon began the segment by pointing to some of Barr's many controversial statements in the past and suggesting these new comments from her - in which she compared Valerie Jarrett to an ape - are nothing new.
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Tweeting this morning, Roseanne told her 725,000 followers: "I'm sorry 4 my tweet, AND I will also defend myself as well as talk to my followers. I was personally horrified and saddened by the comments and in no way do they reflect the values of the people who worked so hard to make this the iconic show that it is".
Barr no doubt feels sick for herself, her co-stars, her crew and everyone associated with her show.
USA television star Roseanne Barr has apologised for her racist outburst against a former Barack Obama aide, claiming she believed the target of her abuse was white. "I mistakenly thought she was white", she wrote. "It's not the first time she's done it", Lemon said. It represented the work of hundreds of talented people.
Several minutes prior to the post, she shared a similar sentiment regarding her desire for fans not to stick up for her, despite the fact that she appreciates their efforts.
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She also tweeted that she was quitting the social media platform, writing: "I apologize [sic]".