Could Your Heart Log You on to Your Computer?

Most of us have experienced frustration when we are asked to concoct a string of numbers, letters, and symbols that include both upper case and lower case characters in order to create an online password. It creates fodder for jokes when the passcodes we create have the effect of keeping us out of our own accounts while criminals seem to have no problem. Many people have difficulty remembering these unusual passwords, especially as their required length seems to grow longer by the minute.

As people the world over are enjoying unprecedented internet access, and as our interconnectivity grows, the need for greater security is ever at the forefront of these advancing technologies. For years, computers have been hacked using phishing schemes, malware, and other methods, and software developers have grown increasingly savvy to the need for enhanced password protection protocol.

Enter biometrics. In the past few years, programmers have unveiled mobile software that uses a person’s fingerprint to verify their identity, and more recently, face and even retina scanning. Researchers at the University of Buffalo have created an even more innovative biometric tool that measures the exact dimensions of a person’s heart in order to create a verification system to use online on both computers and on mobile devices.

Biometrics involving the heart began in 2014, and at that time, it was based on cardiac rhythms, and it used a bracelet to trace the electrocardiogram signal. The team at The University of Buffalo use Doppler radar to map out the specific size and shape of the heart, something that should not change unless a person suffers from a severe cardiac disease. The technique is thought to be especially secure, as no two hearts have ever been found to be the same.

A user is monitored for eight seconds to record his or her heart patterns and geometry, and during this period, a process of continued authentication will occur. Scientists believe this poses no risk to humans, as the signal is even lower and uses less power than the average Wi-Fi setup and, at 5 milliwatts, emits 1 percent of the radiation from a smartphone. Tests have, so far, shown an accuracy rate of 98.61%.

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