In edition no. 104 of Internet Security Week , a new attack takes down Americanas and Submarino, malware in fake Windows 11 installers, the most common cybersecurity errors in startups and much more.
News
New attack takes Americanas and Submarino off the air
The Lapsus group once again attacked Americanas' internet operations, forcing the company to temporarily suspend its e-commerce operations in the Americanas and Submarino domains.
In CISO Advisor
Ransomware attack on Gafisa infects construction company's systems
The construction company Gafisa issued a statement warning that its technology sector was the victim of a ransomware-type cyber attack. According to the statement issued by the company, as soon as Gafisa identified the attack, it already took all necessary protective measures, in addition to looking for ways to mitigate the damage.
By Dácio Castelo Branco on Canaltech
Hackers can crash Cisco email gateways using malicious emails
Cisco has addressed a high-severity vulnerability that could allow remote attackers to crash Cisco Secure Email devices using maliciously crafted email messages.
By Sergiu Gatlan in Bleeping Computer
Protect your smartphone from Pegasus and other mobile malware
Possibly the biggest story of 2021 — an investigation by The Guardian and 16 other media organizations, published in July — that more than 30,000 human rights activists, journalists and lawyers around the world may have been targeted in an attack using Pegasus.
By Costin Raiu in Kaspersky Daily
Researchers detect malware in fake Windows 11 installers
Experts have detected a campaign that tries to spread RedLine Stealer, a threat that steals access data stored in the browser and is distributed as a fake Windows 11 update installer.
By Juan Manuel Harán in We Live Security
Google Chrome emergency update fixes security flaws
Google has released Chrome 98.0.4758.102 for Windows, Mac, and Linux to fix a high-severity zero-day vulnerability used by threat actors in attacks.
By Lawrence Abrams in Bleeping Computer
Hackers break into Teams chats to distribute malware
Security researchers warn that some attackers are compromising Microsoft Teams accounts to enter chats and spread malicious executables among conversation participants. More than 270 million users use Teams every month, many of them trusting the platform implicitly, despite the lack of protections against malicious files.
In CISO Advisor
Fraud attempts by companies grow 102% during the pandemic
A survey by ClearSale, a specialist in anti-fraud solutions, shows that the use of companies for fraud attempts grew by 102% during the pandemic. During this period, many new ventures emerged: according to the Brazilian Micro and Small Business Support Service (Sebrae), more than 2.6 million new individual microentrepreneurs (MEIs) were created in 2020.
By Roseli Andrion on FreeGameGuide
The most common cybersecurity mistakes in startups
On the Internet there are more than a million tips on how to keep a startup afloat. As a rule, those responsible for tips highlight problems in business planning, marketing strategy, attracting additional investment, etc., but the problem of developing a solid cybersecurity system is rarely discussed.
By Anastasia Starikova in Kaspersky Daily
Material
Complete Guide: How to Block Websites in the Company
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