Deep packet inspection, which is also known as DPI, information extraction, IX, or complete packet inspection, is a type of network packet filtering.

If you already live in the UAE you probably know how popular VPNs are as a means to access blocked websites and apps, including Skype and WhatsApp, or to connect to US Netflix and other streaming services.

As the great firewall of China is getting more sophisticated and less permeable, a reliable VPN connection is essential to access social networking sites and other websites and apps that China commonly blocks.

Encryption has a long history. The ancient Greeks would send messages to each other using codes, and these codes could only be broken using a secret key.

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