A fresh look at Gemini shows it helps people by understanding everyday speech and pulling details from tools like calendars. Because the system responds to words instead of rigid programming rules, security experts from Miggo discovered a gap in its design. Using just text that seems normal, hackers might steer the AI off course. These insights, delivered openly to Hackread.com, reveal subtle risks hidden in seemingly harmless interactions.
A single calendar entry is enough to trigger the exploit - no clicking, no downloads, no obvious red flags. Hidden inside what looks like normal event details sits coded directions meant for machines, not people. Rather than arriving through email attachments or shady websites, the payload comes disguised as routine scheduling data. The wording blends in visually, yet when processed by Gemini, it shifts into operational mode. Instructions buried in plain sight tell the system to act without signaling intent to the recipient.
A single harmful invitation sits quietly once added to the calendar. Only after the user poses a routine inquiry - like asking about free time on Saturday - is anything set in motion. When Gemini checks the agenda, it reads the tainted event along with everything else. Within that entry lies a concealed instruction: gather sensitive calendar data and compile a report. Using built-in features of Google Calendar, the system generates a fresh event containing those extracted details.
Without any sign, personal timing information ends up embedded within a new appointment.
What makes the threat hard to spot is its invisible nature. Though responses appear normal, hidden processes run without alerting the person using the system. Instead of bugs in software, experts point to how artificial intelligence understands words as the real weak point. The concern grows as behavior - rather than broken code - becomes the source of danger. Not seeing anything wrong does not mean everything is fine.
Back in December 2025, problems weren’t new for Google’s AI tools when it came to handling sneaky language tricks. A team at Noma Security found a gap called GeminiJack around that time. Hidden directions inside files and messages could trigger leaks of company secrets through the system. Experts pointed out flaws deep within how these smart tools interpret context across linked platforms. The design itself seemed to play a role in the vulnerability.
Following the discovery by Miggo Security, Google fixed the reported flaw.
Still, specialists note similar dangers remain possible. Most current protection systems look for suspicious code or URLs - rarely do they catch damaging word patterns hidden within regular messages. When AI helpers get built into daily software and given freedom to respond independently, some fear misuse may grow. Unexpected uses of helpful features could lead to serious consequences, researchers say.
