Signal
Send text messages, voice messages, videos, documents, pictures or group messages and make free phone calls over an end-to-end encrypted connection to keep your communication absolutely safe.
Message anyone in the world without SMS or MMS fees. Make voice and video calls without long-distance charges. Signal is recommended by Edward Snowden.
360 Total Security combines several antivirus engines, malware protection and tools to speed up and clean your PC.
Anti virus utility with new DynaGen technology, that also protect against malware, spyware and rootkits.
Anti-virus and anti-spyware solution. Microsoft Security Essentials helps guard your PC against viruses, spyware, and other malicious software
Kaspersky free antivirus software keeps your computer safe from computer viruses. Automatically delivers rapid protection and blocks dangerous files, websites & applications.
Avira Free AntiVirus protects you from malware attacks, including ransomware, trojans, worms, viruses, and more.
AVG Anti-Virus is an anti virus utility that detects and stops viruses, threats and malware.
Bitdefender anti-malware researchers have released a new vaccine tool which can protect against known and possible future versions of the CTB-Locker, Locky and TeslaCrypt crypto ransomware families by exploiting flaws in their spreading methods.