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Mac OS malware is targeting crypto-oriented groups on Discord and Slack chat apps Security researchers have recently discovered a new string of Mac OS malware attacks. The malicious code is relatively unsophisticated, as virus authors use primitive infection techniques. Mac mount ftp. We would like to show you a description here but the site won’t allow us. In the Mac OS platform Discord software is not working appropriately, and it gives Discord screen share unavailable & Discord go live not appearing problem. There has no specific solution to the Mac-OS system. But there is some third-party software such as Loopback that can solve this discord no sound on screen share mac issue. Welcome to Discord's home for real-time and historical data on system performance.
If you’re experiencing Discord not responding, crashing or not opening issue, take a deep breath and try the solutions below. The information here is a general guide to help you rule out common causes of Discord not working issue.
Try these fixes:
You may not have to try them all. Just work your way down the list until you find the one that works.
Fix 1: Restart your computer
If you’re running multiple programs on your computer, it’s very likely that your PC memory is overloading, and fails to support Discord. In this case, try restarting your PC to turn off all programs and processes completely.
Note: Please make sure there is no unsaved file on your PC before turning off your PC.
If Discord fails after the reboot, move on to the fix below.
Fix 2: Update Discord
Discord’s developer releases regular updates to fix bugs. It’s likely that a recent update is causing your issue and a update is needed to fix it. Follow the instructions below to update Discord:
1) On your keyboard, press the Windows logo key and R at the same time to open the Run dialog
2) Type %localappdata%, then click OK.
3) Double-click Discord.
4) Double click Update.exe and wait for the update process to be complete.
5) Relaunch Discord to test your issue.
If this didn’t solve your issue, go ahead with the fix below.
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Fix 3: Turn off Hardware Acceleration
Ordinarily, when you run an application, it uses the standard CPU on your computer. If you run a heavy task, such as screen sharing, to work effectively, your app will use other hardware components on your PC. If you have good hardware, enabling Hardware Acceleration will result in better performance of your application; however, if your hardware is weak, this feature may cause problems for you.
To see if this is the core issue, try turning off Discord Hardware Acceleration if it’s on, or vice versa. Here is how to do it:
1) Run Discord, then click the Settings icon.
2) Click Appearance, if Hardware Acceleration is on, turn it off, or vice versa.
3) Click Okay.
4) Reopen Discord to see if this has resolved your issue.
If not, try the next fix.
Fix 4: Reset Discord Settings
Improper voice settings can also cause Discord to fail. If you’ve recently changed any settings in Discord, try resetting it to default. Follow the instructions below:
1) Run Discord, and then click the Settings icon.
2) Click Voice & Video, then Reset Voice Settings.
3) Click Okay.
4) Try sharing your screen again to test your issue.
Hope the lagging issue has been fixed. If not, move on and check the fix below.
Fix 5: Delete Discord cache files
Corrupted cache files can also cause Discord issues. To see if that’s the issue for you, try clearing Discord Roaming data. Here is how to do it: Thief: shadow edition mac os.
1) Close Discord.
2) On your keyboard, press the Windows logo key and R at the same time.
3) Type %appdata% and click OK.
4) Highlight the Discord folder, then press the DEL key on your keyboard to delete the folder. Air attack mac os.
5) Relaunch Discord to test your issue.
If Discord still won’t work, move on and try the fix below.
Fix 6: Disable your antivirus temporarily
Your problem is sometimes caused by interference from antivirus software. To see if that’s the problem for you, temporarily disable your antivirus program and check if the problem persists. (Consult your antivirus documentation for instructions on disabling it.)
If Discord works properly after you disable the antivirus software, contact the vendor of your antivirus software and ask them for advice, or install a different antivirus solution.
Note: Be extra careful about what sites you visit, what emails you open and what files you download when your antivirus is disabled.
Fix 7: Run Discord as an administrator
Discord may require administrator privileges to perform certain functions. To see if this is your problem, try running it as an administrator. Here is how to do it:
1) Exit Discord if it’s running.
2) Right-click the Discord icon and select Properties.
3) Click the Compatibility tab, check the box next to Run this program as an administrator, then click OK to save the changes.
If your problem still exists, try the fix below.
Fix 8: Reinstall Discord
This issue occurs if Discord is not properly installed on your PC, or if certain Discord files are corrupted. In this case, reinstalling Discord is very likely the solution. Here is how to do it:
1) On your keyboard, press the Windows logo key. Then, type control and click Control Panel.
2) Under View by, click Category, and then select Uninstall a program.
3) Right-click Discord and click Uninstall.
4) Download and install Discord.
Hope this article helped in resolving your problem. Please feel free to leave a comment below if you have any questions and suggestions.
Blacklisting should be used to target prohibited or high-risk apps
This year has been a busy one for cyber criminals. Reports indicate that there have been over 500 data breaches and more than 500 million records exposed in 2016 so far. This includes the disclosure of 427 million MySpace records, 68 million Dropbox User records and 117 million user emails and password details at LinkedIn. The healthcare, retail, technology, financial, and governmental sectors head the list of business areas that were the most targeted throughout the year.
Advanced Persistent Threats (APT’s) are on the rise, while 'ransomware' and the use of targeted phishing attacks are being used for financial blackmail and to gain access or leak sensitive, confidential information. No one is excluded from these threats and no company or individual is too small to be a target.
To put things in perspective, 75 percent of small businesses were a target of a cyber-attack and because cyber security defenses are typically lacking, steps must be taken to protect data and reduce the risk of an attack.
Systems pose an easy target for attackers because they often run legacy operating systems, applications and may not apply security updates due to the potential for breaking legacy systems. Security compliance and complexity of the systems make security a larger task and therefore typically has been lower in priority. Companies will continue to be vulnerable to cyber-attacks and data disclosures until they implement more secure measures to protect, detect and respond against these threats.
A major concern is the ever growing and increasing complexity of patching systems and applications. The importance of 'patch management' is huge since it can mitigate more than 80 percent of cyber threats, leaving only those nasty zero days to deal with. Vulnerabilities are growing each year and out of the exploited vulnerabilities in 2015, 99.9 percent of them had a CVE (Common Vulnerabilities and Exposures) published.
Companies globally use a mass of applications in order to make their business function, and with millions of applications to choose from, that help with accessing emails, browsing the internet, running videos, listening to audio/music, mathematical calculations, simulations and many more business functions. Many of these applications are very widely used and some companies become very dependent on these applications to keep their business running however applications do and will have vulnerabilities which makes companies more exposed to hackers and cyber criminals exploiting those vulnerabilities to easily exploit and access systems running those applications.
Each year many CVE’s are posted on the National Vulnerability Database, which helps alert companies who are using these applications and inform them on the mitigation controls to reduce the risks of using such applications. Some applications, however, pose a much greater risk and unless those systems running these applications are locked down significantly the only alternative options are to blacklist them or remove them completely. Let’s take a look at some of those applications.
#1 Appl QuickTime for Windows
Apple QuickTime is a multimedia framework that was used for handling various digital video formats and was available on multiple platforms for Mac OS and Windows. The Windows version was also bundled in some versions of iTunes and also many applications that required QuickTime to play digital content provided download links to make it easy for someone to quickly install.
This year Apple decided to discontinue support for QuickTime on Windows and with several severe and dangerous security vulnerabilities that a hacker could exploit allowing them to take full control over your computer. QuickTime is no longer being updated and these security flaws or any newly discovered vulnerabilities will unlikely be fixed. This truly means that QuickTime for Windows is dead and should no longer be used.
This application should immediately be blacklisted and removed from all systems.
#2 Adobe Flash Player
Adobe Flash Player formally known as 'Macromedia Flash' or 'Shockwave' is a multimedia application that helps enrich the experience when browsing the Internet and allows streaming of video and audio. It is also used in some desktop applications, mobile applications and games.
However, for many years, Flash has had a very poor record for security and vulnerabilities are everywhere for flash with over 400 CVE’s being published. Hackers and cyber criminals have been exploiting it for many years as it enables them to listen to your conversations and use your web camera to watch you in your office or home. Many web browsers have removed support for flash and block it from running, however, many companies and consumers are still using older web browser which still allow flash to run.
It is highly recommended to use the latest versions of web browsers (Microsoft Edge, IE, Firefox or Chrome) and to blacklist Adobe Flash or remove it from your system.
#3 Apple iTunes for Windows
Apple iTunes is a media player, media library and mobile device management software developed by Apple in order to be able to organize and manage all of the company's mobile devices and digital media. It is almost impossible to use an Apple device without requiring the need to use iTunes. However, if you are a Windows user with an Apple device, then using iTunes on Windows is a major security risk. Apple iTunes has had more than 100 CVE’s published and is consistently in the top 10 most vulnerable applications each year. It is also commonly known that apple users do not keep updating iTunes to the latest versions, which typically come with many security updates or you could be using an outdated version that is also bundled with Apple QuickTime, which is listed as the top security risk with many existing exploits.
With iTunes posing a major security risk for many organizations and due to many old and legacy versions containing known and exploitable vulnerabilities, it is recommended to blacklist Apple iTunes for Windows or remove this from your systems.
#4 Old and Legacy Versions of Oracle Java
Java software developed by Sun Microsystems which was then acquired by Oracle is used for developing cross platform software used for playing games, communicating with people, running online apps and for viewing images among many other things and is found on almost all websites or internet applications. It is commonly known for its security vulnerabilities, existing exploits and is consistently listed in the top 10 most vulnerable applications each year. Java is being updated frequently, however, with many zero day vulnerabilities that hackers will look to exploit and take control of your systems. Oracle states that 97 percent of enterprise desktops run Java and that there are more nine million Java developers worldwide. In addition, three billion mobile phones run Java, while another 125 million TV devices also leverage the software. The major problem that exists is the frequent patching and updating of Java required to stay secure and safe. Many browsers even today stop allowing you to run and execute older versions of Java so that helps limit the exposure. However, to mitigate this risk further it is recommended that you should blacklist all old and highly vulnerable versions of Java or remove them from systems that do not require Java for running business operations.
#5 Microsoft Office 2007
With Microsoft Office 2007 about to officially end extended support in October 2017 and with mainstream support already ending in 2012 this means the end of life is coming for Office 2007. So if you are still using Office 2007 do not expect any further security updates in which it is a common target for many hackers and cyber criminals to find exploits in these applications due to its high common use across many organizations and consumers. Microsoft frequently provides many critical security updates so it is always important to stay patched and up to date with the latest versions and this makes moving away from Office 2007 more critical now than ever before due to the end of life. Office 2007 has very poor security, privacy, auditing and sharing features so while hackers target it, it also does not provide enough protection on the data created using Office 2007.
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If you are using Microsoft Office 2007 it is recommended to upgrade to the latest version, blacklist these older versions and remove them from your systems.
Take Action Now to Minimize Your Risks
It is hugely important that companies take a proactive approach to blacklisting and removing high-risk applications or applications that have entered end-of-life; they should be removed as they no longer get critical security updates to remove any major security flaws discovered. Hackers and cyber criminals commonly target these security flaws.
Blacklisting applications is a method used to prevent the installation or running of such applications and are denied system access. Blacklisting should be used to target prohibited applications or applications that cause a significant high security risk to companies like the applications listed above.
Blacklisting applications should be used in conjunction with application whitelisting and application graylisting or dynamic listing.
There are a variety of tools out there that can help you to control what and how applications are permitted to run in an environment and even allow flexibility in whitelisting, blacklisting and graylisting (Dynamic) of applications.
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Be sure to stay safe out there and be cautious on the applications you let in to your digital world - and take the right measures to do so.
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About the Author: Joe Carson is a cyber security professional with more than 20 years’ experience in enterprise security & infrastructure. Currently, Carson is the Head of Global Strategic Alliances at Thycotic. He is an active member of the cyber security community and a Certified Information Systems Security Professional (CISSP).