Samsung Galaxy S5 fingerprint sensor and PayPal app hacked

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Researcher from Security Research Labs have managed to bypass Samsung Galaxy S5 fingerprint authentication, less than a week after the device’s official release, the ethical hackers also hacked the PayPal app.

The researchers from Security Research Labs (SRLabs) re-used a fingerprint mould from

Paypal app logo
Samsung Galaxy S5 fingerprint sensor and PayPal app hacked

their exploitation of the Apple iPhone 5S from last year, requiring “no additional effort whatsoever”. The fake print was based on a camera phone photo “of an unprocessed latent print on a smartphone screen” – reports Tech Week.

It appeared Samsung has allowed for unlimited attempts to access the device, meaning hackers could try numerous times to bypass the fingerprint authentication, without ever being locked out, the researchers said.

They showed how an attacker could hack a Samsung Galaxy S5 to gain access to a PayPal app to make purchases and unsolicited transfers.

When the Samsung Galaxy S5 was announced earlier this year, it was revealed a deal with PayPal would make it simpler to authenticate payments using fingerprints. But SRLabs has voiced concern over the decision to widen the application of biometrics, due to the apparent ease of exploitation.

“Samsung’s implementation of fingerprint authentication leaves much to be desired,”

“The fingerprint scanner in Samsung’s Galaxy S5 raises additional security concerns to those already voiced about conquerable implementations.”

Samsung had not responded to a request for comment at the time of publication.

A PayPal spokesperson said: “While we take the findings from Security Research Labs very seriously, we are still confident that fingerprint authentication offers an easier and more secure way to pay on mobile devices than passwords and PINs. PayPal never stores or even has access to your actual fingerprint with authentication on the Galaxy S5. The scan unlocks a secure cryptographic key that serves as a password replacement for the phone.

“We can simply deactivate the key from a lost or stolen device, and you can create a new one. PayPal also uses sophisticated fraud and risk management tools to try to prevent fraud before it happens. However, in the rare instances that it does, your eligible transactions are covered by our purchase protection policy.”

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