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Last week, unknown hackers leaked portions of the GrayKey code and demanded two bitcoin from Grayshift with the threat of additional data being leaked. According to Motherboard, the code in question “does not appear to be particularly sensitive,” but Grayshift did confirm that a “brief” data leak had occurred.
Indeed, Grayshift told Motherboard in a statement “Due [to] a network misconfiguration at a customer site, a GrayKey unit’s UI was exposed to the internet for a brief period of time earlier this month.”
“During this time, someone accessed the HTML/Javascript that makes up our UI. No sensitive IP or data was exposed, as the GrayKey was being validation tested at the time. We have since implemented changes to help our customers prevent unauthorized access,” the statement added.
Grayshift says that no sensitive IP or data was exposed, and Motherboard confirms that the leaked code appears to be related to the user interface that displays messages on the GrayKey, but it’s clear that Grayshift security is not airtight, raising questions about what kind of data might be accessible to hackers.
The GrayKey is a small, portable gray box equipped with dual Lightning cables. An iPhone is plugged into one of the cables to install proprietary software that’s able to guess the passcode to an iPhone in as little as a few hours to a few days, based on the strength of the passcode.
GrayKey, which is priced starting at $15,000, can crack the latest iPhones running modern versions of iOS, including iOS 11. While the box is designed to provide law enforcement officials with easy access to locked iPhones for criminal investigations, there have been fears that the GrayKey technology could fall into the wrong hands.
The box has been sold to multiple law enforcement agencies across the country, and the data breach that Grayshift suffered, however inconsequential, is not at all reassuring for those who are worried about the security of the GrayKey boxes. The underlying functionality that allows the GrayKey to crack iPhones could be discovered and replicated, and the GrayKey boxes themselves are said to download data from cracked iPhones, which could also be at risk in a data breach.
According to Motherboard, Grayshift has not paid the extortionists their two bitcoin fee, as the Bitcoin addresses provided have received no funds. An additional Bitcoin address promising to provide interested parties with GrayKey information has also not received funds.
Grayshift says that “changes” have been made to help customers prevent unauthorized access to GrayKey boxes in the future, but Motherboard discovered another exposed GrayKey device broadcasting similar code.
Using the computer search engine Shodan, Motherboard found a seemingly exposed GrayKey device, broadcasting similar chunks of code to the open internet.
“To brute force a complex alphanumeric passcode, upload a custom password dictionary. If a dictionary is not uploaded, GrayKey will not attempt to brute force custom alphanumeric passcodes,” one section of the apparent device’s code reads.
The technology used for the GrayKey will likely be outdated at some point through updates to the iOS operating system, but as far as we know now, it’s still functional for even the latest versions of iOS and the newest iOS devices, including the iPhone X.
Those worried about GrayKey and similar technologies can implement stronger and more secure passcodes and passwords that are more difficult to guess through brute forcing to prevent these kinds of tools from working. A 6-digit numeric passcode, Apple’s default, can be guessed in as little as 11 hours, but an 8-digit numeric code can take over a month, while a 10-digit numeric code can take years.
Security experts recommend alphanumeric passcodes that are at least seven characters long with numbers, upper and lowercase letters, and symbols included. The longer the password, the more secure it is from GrayKey-style guessing methods. For more information on Grayshift’s data breach, check out Motherboard‘s full report.
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