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.

The main reason to use a VPN is security - in theory, the data that travels across your VPN should be impossible for anybody else to intercept, so it can protect your online banking or confidential business communications - but there are other benefits too. VPNs can make it much harder for advertising to track you online, and they can overcome geography-specific blocks that prevent you from accessing some country-specific services such as online video.
CyberGhost is one of the better VPNs out there by virtue of having a number of helpful features, such as a killswitch, which will halt all traffic if the VPN tunnel is suspended for whatever reason, ad blockers and tracker blockers, and built-in shortcuts to sites and services which are either geo-locked or the likes of Twitter and Wikipedia, which are frequently censored by authoritarian goverments.
Speed-wise, when connected to VPNHub’s UK and Netherlands endpoints, our FTP and HTTP downloads came in at around 10MB/s (80Mbit/s). Connecting to U.S. endpoints gave us 4.8MB/s (38.4Mbit/s) via FTP and 4.2MB/s (33.6Mbit/s) via HTTP. While that’s good enough for everyday browsing and streaming, your results may vary – we connected to U.S Netflix no problem, but, as with many VPNs on this list, BBC iPlayer promptly showed us the door.
The theme running throughout this service is personal security. From protected DNS queries to automatic kill switches, NordVPN wants you to know that your information won’t fall into the wrong hands. It makes sense, then, that the company also accepts Bitcoin for payments. The company has recently improved its platform support, adding in iOS and Android and thus overcoming its one weakness.
Upon digging into the matter, the authorities found that the police officer’s Facebook and Gmail were deleted. That too, right after the assassination of the Ambassador. Digital traces revealed the action was done over a private connection, operated by ExpressVPN.  Turkish authorities seized the server in question and conducted a thorough inspection, but could not find any find anything.
That said, during our testing we found that you could use the U.K. Channel 4 server to stream Netflix. Though that takes some of the magic out for those who’ve peeled back the curtain, CyberGhost’s approach works wonders for newbies. Those unfamiliar with VPNs will have no questions which streaming platforms they can access and what server they should use.
Buffered VPN doesn't disclose much about the size of its network, but the 30-day money back guarantee means that you can take their service for a test drive and really get a feel for how well it performs for you. The company lost a few points from us because they do keep some connection information. They gained points for their client support, unlimited bandwidth, and generous number of simultaneous sessions allowed.
 PureVPN does not log connection information. We like that they offer a 30-day refund policy.  They got bonus points because, important for some of our readers, PureVPN supports bitcoin payments and  you're going like their blazing fast performance. Also, you can grow with them. If after some time, you need to scale up to business-level plans, the company has offerings for growth. Pricing is middle-of-the-road,at $10.95 per month and $35,88 per year.Finally, we like that PurVPN has both Kodi and a Chromebook solution called out right on their Web page. In addition, PureVPN earns the distinction of being the first VPN service we've seen to fully implement the GDPR.
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