Cyber attacks have been on a rise both nationally and locally.

The University of Massachusetts Lowell canceled classes and business operations for the second day today while investigating a possible cyber security breach.

That's after a ransomware attack on the Massachusetts Steamship Authority earlier this month that caused ferry delays, and a now-infamous ransomware attack on a pipeline that drove up gas prices here and across the country in May.

Cyber attacks are a global threat and President Biden has made them a focal point of his much-anticipated meeting with Russian President Vladimir Putin today. But it's clear this threat has now arrived at the shores of the Commonwealth. So, how vulnerable are we?

To help us tackle that question, we're joined by Hiawatha Bray, a technology writer for the Business section for the Boston Globe.