I'd generally consider a lack of kill switch a deal breaker.

Norton offers what it calls bank-grade encryption - standard AES-256 - but offers no kill switch, which would prevent network data from leaking outside of its secure VPN tunnel in the event the VPN connection fails. So if you're looking for a VPN to use while traveling in China, you may want to consider a different option. Norton's Hong Kong servers dragged down overall speed scores, averaging just 6Mbps. But unlike many other VPNs, Norton doesn't allow you to choose the city you connect to - only the country. In terms of speed, Norton's are on par with other midtier VPNs: During my testing, it achieved only about 43% of the average 187 megabit-per-second speed achieved on a 1 gigabit-per-second-capable fiber connection during testing, while still maintaining an average of around 81Mbps globally. But with limited VPN server options and a few dealbreaker security issues, it's clear that the Norton Secure VPN from NortonLifeLock still has some work to do before it can meet the high standards set by its sibling security products. There are few more familiar names in information security than Norton and LifeLock.

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