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DNS hijack incident: Ankr, a company that provides server infrastructure for blockchain companies, disclosed a security breach on Friday, revealing that a threat actor social-engineered a Gandi employee to take control over some of its servers. The company said the attacker modified two nameservers in order to redirect traffic from two RPC servers to malicious versions. These two servers handled traffic for Polygon and the Fantom Foundation, two organizations that specialize in Ethereum-based infrastructure. Both companies confirmed the RPC infrastructure hijack but did not provide any details about the impact on their customers.

China to invest in its own OS: A group of ten Chinese tech companies have agreed to help Kylinsoft build a new project named openKylin, meant to help improve the open-source development of Kylin, China's national operating system. The move comes as western software companies, such as Microsoft and Apple, are pulling out of Russia and creating technical issues for the Russian government, which, just like China, is incredibly dependent on US-made operating systems.

Azure AD now supports temporary passcodes: Microsoft has formally launched a new feature called Temporary Access Pass for Azure AD. The feature allows Azure AD servers to issue time-limited passcodes to a company's employees. These passcodes can be used by employees to register new accounts or reset accounts where they lost access. Microsoft said the feature should be used by companies that have migrated their employees to passwordless setups where employees use hardware security keys, authenticator apps, or biometrics to access their accounts and need a temporary way to let users register or reset access to accounts.

Stone argues that vendors should do more root cause analysis of their own. First, because it helps the security industry; second, because it helps the company's own developers too; but third, and most important, because it makes an attacker's job harder and may delay future attacks.

OpenSea malicious insider: OpenSea, today's largest NFT marketplace, has suffered a malicious insider incident. The company said that an employee of Customer.io, its email delivery vendor, misused their access to download the email addresses of OpenSea users who signed up for the marketplace's newsletter.

Walmart denies ransomware attack: US retail giant Walmart has denied getting hit by a ransomware attack. The company's name had been recently listed on the leak site of the Yanluowang ransomware gang, with the group claiming to have encrypted between 40,000 and 50,000 of the retailer's systems.

Your weekly dose of Seriously Risky Business news is written by Tom Uren, edited by Patrick Gray and supported by the Cyber Initiative at the Hewlett Foundation, AustCyber, and founding corporate sponsors CyberCX and Proofpoint.

A "hacktivist" group responsible for several destructive attacks in Iran is trying to establish norms of responsible behaviour even as it attempts to destroy steel plants.

On Monday, a group calling itself "Gonjeshke Darande" or Predatory Sparrow in English claimed on social media to have launched destructive cyber operations against three Iranian steel companies. On Twitter it posted evidence of the successful attack, including dramatic video footage of what it claimed was one of the attacks, along with still CCTV images and screenshots from what looks like industrial monitoring systems.

According to a report from the Associated Press, the video showed equipment from Khouzestan Steel, which had to halt operations as a result of the incident. The two other companies did not report any work stoppage as a result of the cyberattack.

In a series of tweets posted on Tuesday, researchers from security firm Check Point said they identified the malware used in the attack, which they named Chaplin, after the name of one of its files.

Check Point said the malware appears to be a newer version of Meteor, the wiper used in a data-wiping attack against Iran's national railway system last summer. But unlike Meteor, Check Point said that Chaplin did not contain any data-wiping functionality.

CafePress fine: The US FTC fined last week the CafePress t-shirt merchandise site $500,000 for trying to cover up the severity of its 2020 data breach. The FTC said CafePress had weak security measures in place, which eventually allowed a threat actor to break in and steal the personal data of 23 million customers.

Ransomware attacks in Japan: Two large Japanese companies—automotive component manufacturer TB Kawashima and automotive hose giant Nichirin—were hit by ransomware attacks last week.

XCarnival hack: XCarnival, a company that claims to be the first NFT assets management platform for the Metaverse, was hacked on Saturday by an unidentified threat actor who exploited its smart contracts to steal 3,087 ETH, estimated at roughly $3.8 million at the time of the heist. The company confirmed the incident in a statement on Twitter when it also paused its smart contracts. Additional details are available in this Twitter thread from blockchain security firm PeckShield, which was the one to stop the suspicious transactions:

New Instagram feature: Meta announced on Thursday that they are testing a new way for users to verify their age on the platform. "If someone attempts to edit their date of birth on Instagram from under the age of 18 to 18 or over, we'll require them to verify their age using one of three options: upload their ID, record a video selfie or ask mutual friends to verify their age," the company said.

Chrome 103 is out: Google has released v103 of its Chrome web browser this week. While the usual security fixes and dev/API-related changes shipped with this release, there were also loads of new features that went live for the Chrome for iOS release. Among the most important new feature was the news that Google's Enhanced Safe Browsing feature is now available for iPhone users, something that has been available for all the other Chrome users since last year.

7-Zip now supports MotW: 7-Zip v22, released last week, supports Mark-of-the-Web, a Windows security feature that has been long requested by security firms and antivirus makers. 7-Zip now becomes the fifth major file archiving software on Windows to support this feature, after WinRAR, WinZip, Eplzh, and Bandizip. [Coverage in Bleeping Computer]

Your weekly dose of Seriously Risky Business news is written by Tom Uren, edited by Patrick Gray and supported by the Cyber Initiative at the Hewlett Foundation, AustCyber, and founding corporate sponsors CyberCX and Proofpoint.

A new Buzzfeed report claims that the user data of TikTok's US customers is accessible from China, despite ongoing efforts to ringfence US data into Oracle data centres. The story illustrates how difficult it will be to satisfactorily isolate US data, but TikTok's influence as a publisher may be an even bigger problem.

Concerns about TikTok stem from fears that ByteDance, its parent company, is beholden to the Chinese Communist Party (CCP) and could be forced to act against the interest of its users by the Party. Spoiler alert: these fears are entirely justified. In 2018 Zhang Yiming, ByteDance's CEO, published an open letter in which he apologised for failing to respect "socialist core values" and for "deviation from public opinion guidance". These particular phrases are Party terms for censorship and information control as a means of maintaining CCP control.

While several Israel-based security firms suggested the attack was carried out by Iranian hackers, government officials told the Jerusalem Post that it is still uncertain who was behind the intrusion.

Everyone seems to have rushed to attribute the incident to Iranian hackers in light of similar intrusions Iranian-linked groups orchestrated in the spring and summer of 2020 against Israeli water and wastewater management systems.

This is not the first time that hackers breach an air raid and public address system to sound false alarms. In previous years, hackers have also set off tornado sirens in Dallas (2017), DeSoto and Lancaster (2019), and Bastille also published research named SirenJack on how emergency alert systems manufactured by ATI Systems could be abused to set off false alarms.

New Windows 11 privacy feature: New versions of Windows 11 now come with a new privacy feature that will let users review which locally installed applications have recently accessed and used the camera and microphone. The feature is great for detecting if systems are infected with spyware that constantly accesses these devices without the user's specific approval. The feature is active in Windows 11 Preview and Dev builds.

Smart App Control: Another new feature coming to Windows 11 Insiders builds later this year is Smart App Control. This new feature works by trying to "predict" if a new app being installed on a Windows 11 system may be malicious or not. If the Windows 11 security service is unable to make a confident prediction, then Smart App Control checks to see if the app has a valid signature and allows the installation based on that check.

Smoother Exchange logins for Apple users: Microsoft said it worked together with Apple to improve the login experience for iOS and iPad users, who will soon be able to log into Exchange email servers using an OAuth token provided by their device instead of constantly having to re-type their usernames and passwords. Microsoft said it plans to notify all organizations which have iOS/iPad users still using its classic authentication scheme and prompt them to update server settings in the coming days.

Your weekly dose of Seriously Risky Business news is written by Tom Uren, edited by Patrick Gray and supported by the Cyber Initiative at the Hewlett Foundation, AustCyber and founding corporate sponsors CyberCX and Proofpoint.

Your correspondent participated in the Lowy Institute's Frontier Rules conference in Canberra this week, which is why this newsletter is a day late.

One interesting discussion at the conference concerned the Russian attack on Viasat's KA-SAT network. This newsletter previously wrote: