IPSec supports several different enciphering algorithms. The most commonly used algorithm, Advanced Encryption Standard (AES), is widely acknowledged as one of the strongest algorithms available for data encryption. With a minimum key length of 64 bits, AES is strong enough for almost any commercial application. Some vendors' IPSec implementations use the Data Encryption Standard (DES) or Triple DES (3DES) ciphers. DES, whose 40-bit key has been cracked, is generally considered a weak algorithm for all but the lowest security levels. 3DES fixes DES's problems by using the algorithm three times and providing an effective key length of 168 bits. Note that if your VPN solution supports only one algorithm, any devices you add in the future must use that algorithm as well.

Setting up a Virtual Private Network is a straightforward process. It's often as simple as entering a username and sever address. The dominant smartphones can configure Virtual Private Networks using PPTP and L2TP/IPsec protocols. All major operating systems can configure PPTP VPN connections. OpenVPN and L2TP/IPsec protocols require a small open source application (OpenVPN) and certificate download respectively.
When a VPN connection drops, you might just lose your connection. But because the internet is very good at routing around failures, what is more likely to happen is your computer will reconnect to the internet application, simply bypassing the VPN service. That means that -- on failure -- your local IP address may "leak out" and be logged by the internet application, and your data may be open to local Wi-Fi hackers at your hotel or wherever you're doing your computing.
That attitude to the safety and privacy of personal data creates an enormous risk when it comes to online security. Public Wi-Fi networks, which are ubiquitous and convenient, are unfortunately also extremely convenient for attackers who are looking to compromise your personal information. How do you know, for example, that "starbucks_wifi_real" is actually the Wi-Fi network for the coffee shop? Anyone could have created that network, to lure victims into disclosing personal information. In fact, a popular security researcher prank is to create a network with the same name as a free, popular service and see how many devices will automatically connect because it appears safe.

You have a 30-day refund guarantee available for test driving the service. The apps, in general, will definitely grab your attention. For instance, the desktop client offers users specific modes for using the VPN. You can choose to surf anonymously, unblock streaming, secure Wi-Fi hotspot, torrent anonymously, and unblock basic websites. Other features you receive include Split Tunneling, NAT Firewall, and multi-logins on 5 devices!
Keep in mind, that no VPN service provides complete security and privacy, but just adds one layer of protection in that direction. In addition, a VPN is held by a company. The company may change its policies or provide data to governments if National Security might be at stake. Using a VPN does not deem you free of any rules and regulations – you have to abide by the laws of the country you reside in, the country hosting the VPN service and probably some others. You are not completely anonymous by simply setting and using a VPN.
And they manage to do all of this without sacrificing performance, offering one of the fastest download speeds (83 Mbps out of 100 Mbps) and the best 24/7 customer support in the industry. The only downside? It’s a little on the pricey side, with monthly plans starting between $6.67 and $12.95/mo. But it’s a small price to pay for excellent performance in almost every category.