TAC Infosec Hits Upper Circuit For The Second Consecutive Day

The article reports on the company TAC Infosec, a cybersecurity firm whose shares hit the upper circuit (price ceiling) for two consecutive days. The surge is linked with the firm being accredited as an ioXt authorised lab (one of only eight globally), allowing it to conduct IoT-security certifications. In H1 FY26, TAC reported net profit of ~INR 15.6 crore (138% year-on-year growth) and operating revenue of ~INR 13.15 crore (162% growth). The piece explains how regulatory/accreditation milestones, investor sentiment, and growth momentum drive stock market behaviour for small-cap, high-growth companies, especially in cybersecurity – where certifications, regulatory compliance and trust become competitive differentiators.