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WhatsApp said on Friday that it wouldn't enforce its recently announced  controversial data sharing policy  update until May 15. Originally set to go into effect next month on February 8, the three-month delay comes following "a lot of misinformation" about a revision to its privacy policy that allows WhatsApp to share data with Facebook, sparking widespread concerns about the exact kind of information that will be shared under the incoming terms. The Facebook-owned company has since repeatedly clarified that the update does not expand its ability to share personal user chats or other profile information with Facebook and is instead simply providing further transparency about how user data is collected and shared when using the messaging app to interact with businesses. "The update includes new options people will have to message a business on WhatsApp, and provides further transparency about how we collect and use data," WhatsApp  said  in a post. "W...

The U.S. National Security Agency (NSA) on Friday said DNS over HTTPS (DoH) — if configured appropriately in enterprise environments — can help prevent "numerous" initial access, command-and-control, and exfiltration techniques used by threat actors. "DNS over Hypertext Transfer Protocol over Transport Layer Security (HTTPS), often referred to as DNS over HTTPS (DoH), encrypts DNS requests by using HTTPS to provide privacy, integrity, and 'last mile' source authentication with a client's DNS resolver," according to the NSA's  new guidance . Proposed in 2018,  DoH  is a protocol for performing remote Domain Name System resolution via the HTTPS protocol. One of the major shortcomings with current DNS lookups is that even when someone visits a site that uses HTTPS, the DNS query and its response is sent over an unencrypted connection, thus allowing third-party eavesdropping on the network to track every website a user is visiting. Even worse, the ...

Joker's Stash, the largest dark web marketplace notorious for selling compromised payment card data, has announced plans to shut down its operations on February 15, 2021. In a message board post on a Russian-language underground cybercrime forum, the operator of the site — who goes by the name "JokerStash" — said "it's time for us to leave forever" and that "we will never ever open again," according to twin reports from cybersecurity firms  Gemini Advisory  and  Intel471 . "Joker goes on a well-deserved retirement. Joker's Stash is closing," the post read. "When we opened years ago, nobody knew us. Today we are one of the largest cards/dumps marketplace[s]." The exact reason for the shut down is still unclear. Joker's Stash, since its origins in 2014, emerged as one of the biggest players in the underground payment card economy over the years, with over $1 billion generated in revenues. The news of the imminent sh...

Cybersecurity researchers have  disclosed  a series of attacks by a threat actor of Chinese origin that has targeted organizations in Russia and Hong Kong with malware — including a previously undocumented backdoor. Attributing the campaign to  Winnti  (or APT41), Positive Technologies dated the first attack to May 12, 2020, when the APT used LNK shortcuts to extract and run the malware payload. A second attack detected on May 30 used a malicious RAR archive file consisting of shortcuts to two bait PDF documents that purported to be a curriculum vitae and an IELTS certificate. The shortcuts themselves contain links to pages hosted on Zeplin, a legitimate collaboration tool for designers and developers that are used to fetch the final-stage malware that, in turn, includes a shellcode loader ("svchast.exe") and a backdoor called  Crosswalk  ("3t54dE3r.tmp"). Crosswalk, first documented by FireEye in 2017, is a bare-bones modular backdoor capable of carry...

Cybersecurity researchers took the wraps off an ongoing surveillance campaign directed against Colombian government institutions and private companies in the energy and metallurgical industries. In a report published by ESET on Tuesday, the Slovak internet security company said the attacks — dubbed " Operation Spalax " — began in 2020, with the modus operandi sharing some similarities to an APT group targeting the country since at least April 2018, but also different in other ways. The overlaps come in the form of phishing emails, which have similar topics and pretend to come from some of the same entities that were used in a February 2019 operation disclosed by  QiAnXin researchers , and subdomain names used for command-and-control (C2) servers. However, the two campaigns diverge in the attachments used for phishing emails, the remote access trojans (RATs) deployed, and the C2 infrastructure employed to fetch the malware dropped. The attack chain begins with the target...