Electronic advertising signs on Toronto commuter trains displayed joke messages about Canada Prime Minister Stephen Harper for several days, Reuters reports on MSNBC.com.The signs, which normally flash transit updates and advertisements, instead displayed, “Stephen Harper Eats Babies” repeatedly across some screens, and technicians on Tuesday were still trying to fix the problem, Reuters reports.Stephanie Sorensen, corporate communications and media specialist for the GO Transit system, told Reuters that the organization believes a hacker was responsible. “We haven’t identified the person who did this, but we’re working closely with the contractor who runs the signs to fix the problem,” she said.Sorensen told Reuters she expects the screens to remain shut off for a few more days, until technology can be installed to keep hackers out. “We regret that it happened, and we’re sorry if anybody was offended, including the prime minister,” she told Reuters.Keep checking in at our Security Feed page, or subscribe via RSS, for updated news coverage. — Compiled by Dave Gradijan Related content feature Top cybersecurity M&A deals for 2023 Fears of recession, rising interest rates, mass tech layoffs, and conservative spending trends are likely to make dealmakers cautious, but an ever-increasing need to defend against bigger and faster attacks will likely keep M&A activity steady in By CSO Staff Sep 22, 2023 24 mins Mergers and Acquisitions Mergers and Acquisitions Mergers and Acquisitions brandpost Unmasking ransomware threat clusters: Why it matters to defenders Similar patterns of behavior among ransomware treat groups can help security teams better understand and prepare for attacks By Joan Goodchild Sep 21, 2023 3 mins Cybercrime news analysis China’s offensive cyber operations support “soft power” agenda in Africa Researchers track Chinese cyber espionage intrusions targeting African industrial sectors. By Michael Hill Sep 21, 2023 5 mins Advanced Persistent Threats Cyberattacks Critical Infrastructure brandpost Proactive OT security requires visibility + prevention You cannot protect your operation by simply watching and waiting. It is essential to have a defense-in-depth approach. By Austen Byers Sep 21, 2023 4 mins Security Podcasts Videos Resources Events SUBSCRIBE TO OUR NEWSLETTER From our editors straight to your inbox Get started by entering your email address below. Please enter a valid email address Subscribe