News Quantum Physics Quantum entanglement makes quantum communication even more secure Quantum devices don’t have to be perfectly understood to be snoop-proof, three studies show Quantum entanglement, a type of ethereal link between particles, improves the security of quantum communication, as demonstrated in three experiments (the one pictured, by researchers in France, Switzerland and England, used strontium ions in its test). David Nadlinger/University of Oxford Share this:EmailFacebookTwitterPinterestPocketRedditPrint By Emily Conover July 27, 2022 at 11:00 am Stealthy communication just got more secure, thanks to quantum entanglement.