'The Biggest Student Data Privacy Disaster in History': Canvas Hack Shows the Danger of Centralized EdTech

The Biggest Student Data Privacy Disaster in History: Canvas Hack Shows the Danger of Centralized EdTech

Thursday afternoon, millions of students at thousands of universities and K-12 schools were locked out of Canvas, a piece of catch-all education technology software that has become the de facto core of many classes. ShinyHunters, a ransomware group, hacked Canvas’s parent company and apparently stole “billions” of messages and accessed more than 275 million individuals’ data, according to the hacking group. The group also locked students out of Canvas.

Later Thursday, Instructure, which makes Canvas, was able to mostly put Canvas back online; it is not clear if the company paid a ransom or not. The breach demonstrates the danger in centralizing the educational and personal data of millions of students in a single service. Canvas is essentially a portal where teachers post assignments and lectures, have discussion boards, and students can message with each other and their teachers and connect with other pieces of education tech software.

Instructure noted on an incident update page that the stolen data includes “certain personal information of users at affected organizations.” That includes names, email addresses, student ID numbers, and messages among Canvas users. Instructure also noted that it was breached twice—once on April 29 and again on Thursday.

Soon after the hack, I called up Ian Linkletter, a digital librarian specializing in emerging education tech. Linkletter has worked in education tech for 20 years and over the last few years has become known for exposing privacy concerns in Proctorio, a remote test proctoring software that rose to prominence during the early days of the COVID-19 pandemic. Linkletter was sued by Proctorio but eventually the case was dropped.

Linkletter told me the Canvas hack is “the biggest student data privacy disaster in history” in part because of its scale and the sensitive nature of what was stolen. This is my conversation with Linkletter, which has been lightly condensed:

404 Media: What do we know about the hack so far?
Linkletter: At about 1:20 PM [Pacific, Thursday], people started posting screenshots to Reddit of this breach message that they got. Some institutions were cautioning people to change their passwords if they were logged in, right now it just seems like people are in panic mode, some senior administration at schools are in meetings talking about whether they need to cancel finals next week. It’s just the implications are on everything because schools are reliant on this learning management system for everything—communications, grading, finals, everything.

Ian Linkletter: What do we know about the hack so far?

Linkletter: At about 1:20 PM [Pacific, Thursday], people started posting screenshots to Reddit of this breach message that they got. Some institutions were cautioning people to change their passwords if they were logged in, right now it just seems like people are in panic mode, some senior administration at schools are in meetings talking about whether they need to cancel finals next week. It’s just the implications are on everything because schools are reliant on this learning management system for everything—communications, grading, finals, everything.