Don't Let This Attack Freeze Your Mac or iPhone
Just over a month after researchers demonstrated that hackers can hijack mouse clicks on a Mac, a new report indicates that specially crafted web pages can freeze or crash Macs and iPhones.
Security researcher Sabri Haddouche has created HTML and CSS code that, when hosted by a web page, attacks visitors' devices.
"The attack uses a weakness in the -webkit-backdrop-filter CSS property," Haddouche told BleepingComputer. "By using nested divs with that property, we can quickly consume all graphic resources and crash or freeze the OS."
In other words, while the code is just 15 lines long, it contains a massive amount of <div> tags, which consume all of your device's graphic resources, causing it to freeze or restart.
Haddouche went on to note that the attack affects all browsers on iOS, as well as Safari and Mail in macOS.
"All browsers on iOS are affected because the underlying rendering engine is WebKit," Haddouche explained.
Visiting the webpage on a Mac will cause Mail and Safari to freeze for a second, and the computer running them to slow down. (Once you've closed the Safari tab running the code, the computer returns to normal).
It caused a device running iOS 12 to reboot completely, but caused an iOS 11.4.1 device to only respring (boot the user to the lock screen). According to Twitter user Robert Petersen, the web page causes an Apple Watch running watchOS 5 to freeze and reboot as well.
Many Mac users still assume Macs aren't vulnerable to malware and adware, but the truth is that the past two years have seen more Mac vulnerabilities than ever before.
Just a few weeks ago, North Korean state-sponsored hackers used Mac malware to successfully hack a cryptocurrency exchange platform. And back in January, a researcher discovered a piece of macOS malware that reroutes your traffic to malicious websites, and could also be used to steal passwords, take screenshots, download files, run software and more.
Unfortunately, there isn't much you can do to prevent these attacks. We'll just have to wait for Apple to release a patch. In the meantime, take extra care not to click on links that you're not familiar with.
- Information Security Manager- Global Sporting Brand. UK. £100,000
REFCH8265 Identifier Project Information Security Manager- Global Sporting Brand. UK. £100,000 A unique and exclusive opportunity to DCL Search to provide leadership and guidance Information and IT Security practices to one of the most recognised sporting brands in the world. You will be the envy of your colleagues, friends and peers as you take the lead in developing and implementing a security strategy. You must have a blend of knowledge across information security and technical security and be able to build internal and external stakeholder relationships. To coin a well known phrase, you should be a player manager. You don’t need to be currently hands on configuring firewalls, monitoring SIEM alerts, but maybe you have in the past. Ideally you will have come from a technical background as you will be closing be working with technical teams. Skills should include, but not be limited to: Managing / developing to Incident response plans. Information Security Risk Management / compliance. Security awareness Driving remediation plans to address vulnerabilities etc. Hybrid working. Up to £100,000 + benefits.
- Lead Information and Cyber Security Specialist, Financial Services. Exclusive to DCL Search
Consultative approach with experience engaging with internal stakeholders providing advice and guidance across information security policies and standards into projects and programmes. Risk identification / Assessment / Management across people and process. ISO27001. Open mindedness to take on projects and programmes that will involve advising, scoping, refining, improving technical security control relating to best practice. Preferred experience; PCI DSS ISA or consultative experience within security Payment card industry. Information Security / technical security controls within Financial Services. Risk Assessment / management across technical controls. Technical Security background. Experience within secure by design and the technical security controls relating to projects / programmes. iSO27001 Lead Implementer / Auditor. CISA, CISM, CISSP. 2 days a fortnight in London- or more if you want.. Hybrid reworking.
- Cyber Security Associate, Financial Services. Exclusive to DCL Search
Exclusive Cyber Security Associate needed within a forward thinking financial services business head quartered in London. DCL Search have been engaged on an Identifier Project to attract the very best cyber talent to this business. Influence the cyber security capability and direction within the business. Learn new skills working within a collaborative team. Grow as a security professional. ROLE Triaging and troubleshooting security alerts at a level 1 / level 2 capacity. Reviewing security change management requests. Managing and use of security tooling such as; Endpoint management Vulnerability management Patch management CASB Experience with the following tools is desirable. ZOHO Desktop Central (Endpoint Management) Splunk (SIEM) Qualys CASB (Microsoft) Microsoft Azure Varonis DatAdvantage ADAudit Plus Sonicwall, Paloalto, Dark Trace, Cloudflare, Cisco Umbrella, Microsoft defender.
- Senior Cyber Security Engineer, Financial Services. Exclusive to DCL Search
Exclusive Senior Cyber Security Engineer needed within a forward thinking financial services business head quartered in London. DCL Search have been engaged on an Identifier Project to attract the very best cyber talent to this business. Influence the cyber security capability and direction within the business. Learn new skills working within a collaborative team. Grow as a security professional. ROLE Day to day operations, management and scalability of existing cyber security systems Managing of and maturing security tooling such as; SIEM Endpoint Management Firewall Patch Management CASB Vulnerability management. Triaging and troubleshooting security alerts. Improve tooling, reducing false positives. Reviewing, approving, escalating security change management requests. Implementing new cyber security systems. Ideal technical experience · Vulnerability Management: Qualys · Endpoint Management: ZOHO Desktop Central · Forcepoint: CASB, DLP, webs security, email security. · SIEM (Splunk) · Firewalls: Sonicwall, Palo Alto · Endpoint Microsoft Defender · Appreciation of ISO27001, GDPR, PCI, etc 2 days a fortnight in London- or more if you want.. Hybrid reworking.