The US Federal Bureau of Investigation (FBI), Departments of Homeland Security, and Health and Human Services (HHS) issued a joint alert Wednesday warning of an "imminent" increase in ransomware and other cyberattacks against hospitals and healthcare providers. "Malicious cyber actors are targeting the [Healthcare and Public Health] Sector with TrickBot malware, often leading … [Read more...] about FBI, DHS Warn Of Possible Major Ransomware Attacks On Healthcare Systems
Search Results for: clear dns cache os x
17-Year-Old Critical ‘Wormable’ RCE Vulnerability Impacts Windows DNS Servers
Cybersecurity researchers today disclosed a new highly critical "wormable" vulnerability—carrying a severity score of 10 out of 10 on the CVSS scale—affecting Windows Server versions 2003 to 2019.The 17-year-old remote code execution flaw (CVE-2020-1350), dubbed 'SigRed' by Check Point, could allow an unauthenticated, remote attacker to gain domain administrator privileges over … [Read more...] about 17-Year-Old Critical ‘Wormable’ RCE Vulnerability Impacts Windows DNS Servers
New Cache Poisoning Attack Lets Attackers Target CDN Protected Sites
A team of German cybersecurity researchers has discovered a new cache poisoning attack against web caching systems that could be used by an attacker to force a targeted website into delivering error pages to most of its visitors instead of legitimate content or resources.The issue affects reverse proxy cache systems like Varnish and some widely-used Content Distribution … [Read more...] about New Cache Poisoning Attack Lets Attackers Target CDN Protected Sites
Critical Flaws Found in VxWorks RTOS That Powers Over 2 Billion Devices
Security researchers have discovered almost a dozen zero-day vulnerabilities in VxWorks, one of the most widely used real-time operating systems (RTOS) for embedded devices that powers over 2 billion devices across aerospace, defense, industrial, medical, automotive, consumer electronics, networking, and other critical industries.According to a new report Armis researchers … [Read more...] about Critical Flaws Found in VxWorks RTOS That Powers Over 2 Billion Devices
‘Karkoff’ Is the New ‘DNSpionage’ With Selective Targeting Strategy
The cybercriminal group behind the infamous DNSpionage malware campaign has been found running a new sophisticated operation that infects selected victims with a new variant of the DNSpionage malware.First uncovered in November last year, the DNSpionage attacks used compromised sites and crafted malicious documents to infect victims' computers with DNSpionage—a custom remote … [Read more...] about ‘Karkoff’ Is the New ‘DNSpionage’ With Selective Targeting Strategy
How to Edit Hosts file in Mac OS X 10.11 El Capitan
The hosts file is used by your computer to map hostnames to IP addresses. By adding or removing lines to your hosts file you can change where certain domains will point when you access them in a browser or using other software. You can block certain hosts names, like ad-serving/malicious hosts, or used for web development purposes, i.e. to redirect domains to local … [Read more...] about How to Edit Hosts file in Mac OS X 10.11 El Capitan
How to Check DNS Cache Details in OS X Yosemite
If you are changing or are going to change DNS, and you want to see some details about what is currently cached. Step 1. Open Terminal.app Step 2. To get UDNS cache statistics insert this command to terminal sudo discoveryutil udnscachestats … [Read more...] about How to Check DNS Cache Details in OS X Yosemite
How to Edit Hosts file in Mac OS X 10.10 Yosemite
The hosts file is used by your computer to map hostnames to IP addresses. By adding or removing lines to your hosts file you can change where certain domains will point when you access them in a browser or using other software. You can block certain hosts names, like ad-serving/malicious hosts, or used for web development purposes, i.e. to redirect domains to local … [Read more...] about How to Edit Hosts file in Mac OS X 10.10 Yosemite
Apple Releases OS X 10.10 Yosemite Public Beta
Apple has released a public beta of OS X 10.10 Yosemite, the company's upcoming operating system set for release this fall. The public beta is available to the first million users who sign up here. OS X Yosemite has been redesigned and refined with a new look, new apps and new continuity features that make working across your Mac and iOS devices easier. … [Read more...] about Apple Releases OS X 10.10 Yosemite Public Beta
How To Clear DNS Cache on an iPhone
DNS request are usually cached, that’s good as it help to speeds up the lookups within the same host but sometimes we will want to clear the cache so it don’t hold the values that are no longer valid. In OS X we use terminal to clear DNS cache, but in iOS there is no terminal. You have 2 possibilities to clear dns cache in iOS, first is reboot and second one is switching to … [Read more...] about How To Clear DNS Cache on an iPhone