The outage has left Garmin's fitness devices disconnected - and users frustrated - for more than a day. Furthermore, the Garmin Connect app, which establishes a connection between Garmin fitness devices and smartphones, is giving an error message saying it's down for maintenance.
A follow-up tweet also confirmed that the "outage also affects our call centers, and we are now unable to receive any calls, emails or online chats".
Although Garmin Connect was not accessible during the outage, the company notes that activity, health and wellness data was still collected from and stored on customer devices.
"Many of our online services were interrupted including website functions, customer support, customer facing applications, and company communications", said Garmin in a statement.
Those signing into the site are now greeted by a message reading: "We are now experiencing an outage that affects Garmin.com and Garmin Connect".
The publication further says that some customers lost access to older logs, hinting that a lot of mayhem may have been caused in Garmin's backend.
The US company's Garmin Connect service, which lets users record data from activities such as running and cycling and allows them to track their heart rate and other metrics, was hit by suspected ransomware.
The failure in service seems to have surfaced due to a new strain of ransomware called WastedLocker that impacted the IT infrastructure of Garmin.
Earlier today, all of Garmin's websites and services were offline, although as of 9:40 p.m. EDT some Garmin websites were back online. "Garmin also provides services for aviators and sailors, meaning they may not be able to use their trusted apps for weather reports or filing flight plans".
In an online statement, the company did not specify that it was the target of a ransomware attack, in which hackers infiltrate a company's network and use encryption to scramble data until payment is received.
Currently, Garmin has not confirmed any of this via official channels - the longer it waits, the worse things look.
You can find more detailed instructions on the Strava website.