The so-called “hacktivist” group Anonymous appears to be following through on its promise to reveal the identities of “about 1000” Ku Klux Klan (KKK) members on the anniversary of the Ferguson protests.

Over the weekend, users claiming to be affiliated with the hacker group posted a small portion of email addresses and phone numbers allegedly belonging to members of the KKK on anonymous information sharing site Pastebin. Global News has not confirmed the validity of the leaked information.

The #OPKKK campaign marks Anonymous’ second cyber attack against the white supremacist group, both sparked by the KKK’s threat to use lethal force against protesters waiting for a grand jury decision on possible charges against Ferguson police officer Darren Wilson, who shot and killed unarmed black teenager Michael Brown in August 2014.

READ MORE: Anonymous threatens to reveal names of 1,000 Ku Klux Klan members

Anonymous claims it will release the identities of Klan members, Ghoul Squad affiliates and “other close associates of various factions of the Ku Klux Klan across the Unites States” on Nov. 5. According to a tweet sent on Oct. 22, Anonymous obtained the names after a group member gained access to a Klan Twitter account.

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The group is also promising to unleash a social media campaign against the KKK on Nov. 4, using the hashtag #HoodsOff.

According to the official #OPKKK campaign Twitter account, Anonymous members have also taken over the Twitter accounts and websites belonging to some KKK members.

“Today we have shut down servers, gotten personal information on members of the KKK, and infiltrated your twitters and websites. And this is just the beginning,” read a press release issued by Anonymous Sunday.

“We never forgot your threats to the protesters in Ferguson, and we certainly never forgave you. And the same will be done to the threats you give now.”