Risks
Malicious QR Codes combined with a permissive reader can put a computer's contents and user's privacy at risk. This practice is known as "attagging", a portmanteau of "attack tagging". They are easily created and can be affixed over legitimate QR Codes. On a smartphone, the reader's many permissions allow use of the camera, full Internet access, read/write contact data, GPS, read browser history, read/write local storage, and global system changes.
Risks include linking to dangerous web sites with browser exploits, enabling the microphone/camera/GPS, and then streaming those feeds to a remote server, analysis of sensitive data (passwords, files, contacts, transactions), and sending email/SMS/IM messages or DDOS packets as part of a botnet, corrupting privacy settings, stealing identity, and even containing malicious logic themselves such as JavaScript or a virus. These actions could occur in the background while the user is only seeing the reader opening a seemingly harmless web page. In Russia, a malicious QR Code caused phones that scanned it to send premium texts at a fee of US$6 each.
Read more about this topic: QR Code
Famous quotes containing the word risks:
“If the children and youth of a nation are afforded opportunity to develop their capacities to the fullest, if they are given the knowledge to understand the world and the wisdom to change it, then the prospects for the future are bright. In contrast, a society which neglects its children, however well it may function in other respects, risks eventual disorganization and demise.”
—Urie Bronfenbrenner (b. 1917)
“There are risks which are not acceptable: the destruction of humanity is one of them.”
—Friedrich Dürrenmatt (1921–1990)
“The question is whether personal freedom is worth the terrible effort, the never-lifted burden and risks of self-reliance.”
—Rose Wilder Lane (1886–1968)