Security Fibers - Security Feature

There are two kinds of security fibers. The first one is the visible security fibers. These are easily seen in current Philippine banknotes as the blue and red fibers that are randomly spread throughout the front and back of the paper. The other kind is the invisible security fiber. These glow a fluorescent yellow under ultraviolet light.

Security fibers are another form of security feature in Philippine money that guard against counterfeiting. Genuine security fibers in Philippine banknotes can be easily plucked out (yes, try it!) with the aid of a needle. Counterfeit money usually only prints the fibers on paper, thus , they cannot be plucked out.