06/02/2026
A few weeks ago, hackers shut down Canvas, the learning platform used by 41% of American colleges, right in the middle of finals week.
Students across the country opened their laptops to study and found a ransom note where their login page used to be.
Professors couldn't access grades.
Assignments disappeared.
Schools scrambled to extend deadlines and rearrange entire exam schedules.
The hackers, a group called ShinyHunters, claimed they stole 3.65 terabytes of data from 275 million students, teachers, and staff across nearly 9,000 schools worldwide.
Names, email addresses, student IDs, and billions of private messages between students and teachers.
On Monday night, Instructure, the company behind Canvas, confirmed they paid the ransom.
Congress is now investigating.
This is the largest educational data breach in history.
And it happened because the attackers exploited a vulnerability in Canvas's free teacher accounts.
One overlooked entry point.
275 million people affected.
For Chicago business owners, this is a lesson in how a single weak spot can bring down an entire organization.
It doesn't matter how big you are or how much you spend on security if there's a door you forgot to lock.
π Audit every access point to your systems, including free accounts, trial accounts, and old logins
π Remove access for any accounts that aren't actively being used
β
Have an incident response plan before you need one, not after
If a platform serving 9,000 schools can go down from one overlooked account type, what's the overlooked entry point in your business?