Grayshift is an American mobile device forensics company which makes a device named GrayKey to crack iPhones, iPads, and Android devices.

Grayshift was co-founded by David Miles, Braden Thomas, Justin Fisher and Sean Larsson.[1] The company is funded by private investors PeakEquity Partners and C&B Capital.[2][3]

GrayKey

The GrayKey product has been used by the FBI and U.S., British and Canadian local police forces.[4][5][6][7][8][9] Canadian police forces require judicial authorization (court order or warrant) per mobile phone to use GrayKey. GrayKey is estimated to be used in up to 30 countries.[10]

According to media reports, GrayKey costs US$15,000 to US$30,000 per copy depending on the functional options chosen.[11] One thousand agencies currently use GrayKey[12] The device is a gray box, 4 inches by 4 inches by 2 inches in size, with two Lightning cables.[13] The time to solve an iPhone's passcode can be a few minutes to several hours, depending on the length of the passcode. Thus, it is possible that GrayKey is performing a brute-force attack to perform to solve after disabling the passcode attempt limit.[14]

The GrayKey reportedly provides support for iPhones running iOS 9 and later.[15] Apple modified iOS so that external device connections must be authorized by the iPhone owner after it has been unlocked.[16] On newer iPhone models, only unencrypted files and some metadata might be extracted. With earlier models, full data extraction, such as decrypting encrypted files, is possible.[17]

In 2018, hackers obtained the GrayKey source code, and attempted to extort a payment of 2 bitcoins from Grayshift after leaking "small chunks of code".[18][19]

GrayKey with Android support was released in early 2021.[20]

References

  1. ↑ "Leadership". Retrieved 2021-01-04.
  2. ↑ "Investors and Advisors". Retrieved 2021-01-04.
  3. ↑ "Grayshift, The Startup That Breaks Into iPhones For The Feds, Raises $47 Million". Forbes. 2020-10-26. Retrieved 2021-01-04.
  4. ↑ Miller, Chance (2020-01-16). "Report: The FBI recently unlocked an iPhone 11 Pro with GrayKey, raising more doubts about the Pensacola case". 9to5Mac. Retrieved 2020-01-16.
  5. ↑ Fox-Brewster, Thomas (March 5, 2018). "Mysterious $15,000 'GrayKey' Promises To Unlock iPhone X For The Feds". Forbes. Retrieved 2020-01-16.
  6. ↑ Burgess, Matt (2018-10-19). "UK police are buying top secret hacking tech to break into iPhones". Wired UK. ISSN 1357-0978. Retrieved 2020-01-16.
  7. ↑ Cox, Joseph (2018-04-12). "Cops Around the Country Can Now Unlock iPhones, Records Show". Vice.com. Retrieved 2020-01-16.
  8. ↑ "Waterloo Regional Police have a device that can crack locked phones". 2021-01-03. Retrieved 2021-01-04.
  9. ↑ "More questions than answers as Guelph Police confirm ownership of controversial forensic tool". 2020-12-02. Retrieved 2021-01-04.
  10. ↑ Grayshift. "Grayshift Announces Office in France and Continues to Invest in European Growth". www.prnewswire.com (Press release). Retrieved 2022-07-12.
  11. ↑ Nicas, Jack (2020-10-21). "The Police Can Probably Break Into Your Phone". The New York Times. Retrieved 2021-01-04.
  12. ↑ "Record Growth and Continued Innovation in Mobile Forensics Market". Grayshift. Retrieved 2021-05-25.
  13. ↑ "GrayKey iPhone unlocker poses serious security concerns". 2018-03-14. Retrieved 2021-01-04.
  14. ↑ "Instructions Show How Cops Use GrayKey to Brute Force iPhones". www.vice.com. Retrieved 2022-07-18.
  15. ↑ "FBI got data from a locked iPhone 11 using GrayKey: how does this tool work?". 22 January 2020. Retrieved 2021-01-04.
  16. ↑ "USB Restricted Mode in iOS 13: Apple vs. GrayKey, Round Two". 2019-09-27. Retrieved 2021-01-04.
  17. ↑ Fukami, Aya; Stoykova, Radina; Geradts, Zeno (2021-09-01). "A new model for forensic data extraction from encrypted mobile devices" (PDF). Forensic Science International: Digital Investigation. 38: 301169. doi:10.1016/j.fsidi.2021.301169. ISSN 2666-2817.
  18. ↑ "Look, a GrayKey interface on the internet!". 2018-05-25. Retrieved 2021-01-04.
  19. ↑ "Hackers Leaked The Code Of iPhone Cracking Device "GrayKey", Attempted Extortion". 2018-05-24. Retrieved 2021-01-04.
  20. ↑ "Grayshift Introduces Android Support on GrayKey". Grayshift. Retrieved 2021-05-25.


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