Shai Schiller Form 3 Filing and Power of Attorney for Hub Cyber Security Ltd.

This Form 3 filing reports the initial beneficial ownership of Shai Schiller, Head of Strategy at Hub Cyber Security Ltd. (HUBC). The filing discloses Schiller's ownership of 1,674 ordinary shares directly held, plus 1,481 restricted share units (RSUs) that vest in twelve quarterly installments beginning November 28, 2024. Each RSU represents the right to receive one ordinary share. The filing includes a Power of Attorney executed on March 5, 2026, authorizing Tuvia Grossman, Netanel Derovan, Michael Rosenberg, and Stephanie Swan to act as attorneys-in-fact for Schiller to file SEC documents on his behalf. The Power of Attorney specifically allows these individuals to submit filings through the EDGAR system, including Forms 3, 4, 5, Schedules 13D/13G, and Forms 144. This arrangement facilitates compliance with Section 16 reporting requirements under the Securities Exchange Act of 1934.