You've doubtless heard of biometric security systems, which typically use your fingerprint to clock you in and out at work, or unlock doors for areas where you're permitted to go, or even safeguard access to computers by requiring users to provide their fingerprints to use the device.
Now, from China it's reported that there's a new way to bypass some such systems.
Lazy workers are giving bosses' new security measures the finger - by sending off for kits to fake their own fingerprints.
Customers send their prints to an online company in Shandong, eastern China, which for 10 GBP sends back fake fingertips with perfect copies of the dabs.
It means anyone can fool fingerprint security systems just by slipping on the silica gel moulds.
The product has found a massive market in China where companies are scrapping old-fashioned sweep cards for fingerprints to clock on and off.
One customer Xiao Liu, 38, said: "We're fined 20 pounds (US $33) every time we're late and I used to ask a friend to punch me in until my bosses switched to fingerprints.
"Now I've just given some copies of my fingerprints to people on the early shift and I'm never late no matter what time I get up."
But the technology has massive implications for police and anti-terrorist authorities.
"People can simply steal a set of fingerprints and cause chaos with identity theft," said one expert.
Looks like it's back to the drawing-board for the security experts . . .