Joe Castaldo
Joe Castaldo is a journalist who covers the intersection of technology and business, focusing on how generative AI is transforming industries. His recent work includes analyzing the effects of AI on business practices since the launch of ChatGPT.
Not in the pool (under ¢1).
Recent news mentions
With a file from Joe Castaldo and The Canadian Press.
Tumbler Ridge shooter’s ChatGPT messages were flagged months before attack
Canada· 2026-02-22
Joe Castaldo contributed reports regarding the Tumbler Ridge shooting and the responses from OpenAI.
OpenAI did not mention Tumbler Ridge shooter’s posts in meeting with B.C. officials day after mass shooting: provinceCanada· 2026-02-21
With a file from Joe Castaldo and The Canadian Press.
Tumbler Ridge shooter’s ChatGPT messages were flagged months before attackCanada· 2026-02-21Reporter Joe Castaldo reported on Brian Madden's comments regarding sky-high expectations around a public listing.
Business Brief: Five files that will shape 2026Canada· 2025-12-23
Joe Castaldo collaborated with Alexandra Posadzki in reporting on the QuadrigaCX restitution issue.
More than 100 bitcoins linked to QuadrigaCX are still missing. Victims are entitled to those assetsCanada· 2025-12-14
Joe Castaldo, who covers AI, explains why markets are twitchy about AI right now and what’s behind investors’ concerns.
If AI is a bubble, how will it pop?Canada· 2025-11-26The article includes a report from Joe Castaldo.
Quebec looking to Caisse investments, data centres to boost economy amid trade turmoilCanada· 2025-11-11
Joe Castaldo is a Globe business reporter discussing the complexities of building sovereign digital companies.
AI and digital sovereignty in the elbows-up eraCanada· 2025-10-20
Hi, I’m Joe Castaldo, a business reporter with The Globe covering artificial intelligence.
Business Brief: A path to data sovereigntyCanada· 2025-10-19
Joe Castaldo contributed to the report on Hopper's advancements in AI technology.
Hopper leans into AI with virtual customer service agent it says is as good as humansCanada· 2025-10-01
Joe Castaldo is a tech reporter who answered reader questions about the challenges facing Canadian startups.
Why are Canada’s tech startups leaving for the U.S.? We answered your questionsCanada· 2025-09-30
Joe Castaldo will be answering reader questions about the brain-drain problem in Canada’s tech industry.
Upcoming Q&A: Tech founders are leaving Canada in droves. Ask our experts your questions about itCanada· 2025-09-27
Joe Castaldo contributed to the reports regarding Constellation Software.
Constellation Software founder Mark Leonard resigns, shares extend recent plunge after investor pressureCanada· 2025-09-25
Joe Castaldo, a Globe and Mail reporter covering AI and technology, recently joined The Decibel podcast to discuss how AI may be dulling students’ critical thinking skills.
AI’s cost to critical thinkingCanada· 2025-07-13
Joe Castaldo reported on the operation of a U.S. data-centre firm in Canada.
Business Brief this week: A stampede, a gold rush, and an AI arms raceCanada· 2025-07-08
Joe Castaldo reports on AI and tech, discussing its impact on education.
Is AI making us dumb?Canada· 2025-07-02Joe Castaldo contributed files to the article discussing the acquisition of CentML.
NVIDIA acquires Canadian machine learning company CentMLCanada· 2025-06-27
Joe Castaldo is a business reporter for The Globe and Mail.
Alberta’s AI push could come with a big energy price tagCanada· 2025-05-21Joe Castaldo contributed to the reports on Celestica.
CEO of Canada’s Celestica sells $130-million of shares, cashing in on Nvidia-style gains during AI boomCanada· 2025-02-11
Joe Castaldo contributed to the article discussing the controversy surrounding Shopify.
Former Shopify executives denounce platform for hosting Kanye West’s store selling swastika T-shirtsCanada· 2025-02-10
Joe Castaldo wrote about the impact of generative AI on businesses.
A computer scientist answers your questions about AICanada· 2025-02-08
