Zwift fix addresses weight-doping exploit

Zwift announces first fix in "a series of security changes" to address weight-doping and game integrity.

by Ronan Mc Laughlin

Zwift has announced a fix to address the weight-doping exploit that recently made waves in the Zwift community. Less than a week on from Zwift CEO Eric Min’s statement on the weight-doping saga the first part of that fix is now live. 

Zwift’s Community Forum Manager, Shuji, announced the update in a post on the Zwift Forum, describing today’s fix as the first in “a series of security changes to address an exploit in-game.” Friday’s update specifically targets racing events where the exploit could be used to gain an unfair advantage. Shuji explained the first update focuses on “competitive integrity and ensures greater fairness, specifically in events.” The fix means a rider’s weight and height are now locked once an event starts. The post explained, Zwifters who attempt to change either metric mid-event on will now be met with a “generic error message”, or the update simply won’t save for those using the Companion app. Zwifters can still update their height and weight details in-game while not participating in an event.

This update quickly addressed the weight-doping exploit which came to widespread attention last week. The swiftness with which Zwift addressed the issue will no doubt leave many questioning why such a fix wasn’t implemented previously. However, the exact timing of when Zwift became aware of the trick is unclear, with Eric Min’s statement suggesting the cheat was “relatively unknown both within Zwift and outside” until last week.

The statement also made mention of the Bug Bounty Program that Eric Min spoke of previously. Shuji reiterated Min’s comments that the program would take time and committed to updating Zwifters “as soon as we have news”.

Shuji concluded the statement reiterating further fixes are in the works, “this is the first step of many we are taking to address game integrity. We look forward to updating you on additional efforts.”

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