# Maryland HB 0593: Criminal Law - Interference With Critical Infrastructure or a Public Safety Answering Point Maryland HB 0593, Criminal Law - Interference With Critical Infrastructure or a Public Safety Answering Point, is a 2026 Regular Session House bill sponsored by Terri L. Hill (Democratic); status signed, last action 2026-05-12 (Approved by the Governor - Chapter 521) (as of 2026-10-11). - Canonical: https://policyrisk.com/state-bill/MD-HB0593-2026RS - As of: 2026-10-11 - Plain-text twin of the page above; the HTML and this file carry the same facts. ## Facts - Bill: Maryland HB 0593 - State: Maryland - Session: 2026 Regular Session - Title: Criminal Law - Interference With Critical Infrastructure or a Public Safety Answering Point - Status: signed - Chamber: House - Introduced: 2026-01-28 - Last action: 2026-05-12, Approved by the Governor - Chapter 521 - Sponsor: Terri L. Hill (Democratic) - Cosponsors: 4 - Subjects: Criminal Law - Substantive Crimes, Administrative Agencies, Counties -see also- Chartered Counties; Code Counties; etc., Crimes and Punishments -see also- Penalties and Sentnc; etc., Cybersecurity, Emergency Services -see also- Ambul; Emergencies; etc., Health -see also- COVID19; EnvHlth; MedCon; etc., Municipal Corporations -see also- Annap; Balt, Penalties and Sentences -see also- Death Penalty, Safety -see also- Occupational Safety, Telecommunications, Transportation -see also- Aircraft; Airports; Boats; etc, Utilities -see also- Recycl; Refuse; Sewage; Teleph; Water - Touches household money: no - Roll calls: 2 (181 yes, 0 no in all) - Economic provisions PRIA read: 4 ## Summary No summary available. ## Bill overview: provisions PRIA read - New crimes for disrupting critical systems: benefit, medium. Beginning Oct 1, 2026, it is a crime to intend to interrupt critical infrastructure or 911 call centers. It is also illegal to attack state government, electricity or gas systems, public utilities, hospitals, or public schools. Denying access to authorized users of critical infrastructure or 911 ce… - Clear definitions for cyber crimes: benefit, low. Beginning Oct 1, 2026, the law defines key cyber terms. It defines access to a computer or network. It defines the aggregate amount of loss, including reasonable costs to check for harm. It defines critical infrastructure as systems whose loss would harm safety, health, or utilities. It also define… - New crimes for computer misuse: benefit, low. Beginning Oct 1, 2026, it is a crime to access a computer or network without permission or to copy data from it. It is illegal to make systems malfunction or to alter, damage, or destroy data. It is illegal to possess or share valid access codes without authorization. Knowing possession of ransomwa… - Penalties for computer intrusions and ransomware: benefit, low. Beginning Oct 1, 2026, unauthorized access is a misdemeanor with up to 3 years in jail or a $1,000 fine. For offenses causing or aiming to cause malfunctions or misusing access codes, penalties scale by loss: at $10,000 or more, a felony with up to 10 years or a $10,000 fine; under $10,000, a misde… ## Sponsors and cosponsors - Sponsor: Terri L. Hill (Democratic), House - Cosponsor: Regina T. Boyce (Democratic), House - Cosponsor: Pam Lanman Guzzone (Democratic), House - Cosponsor: Gabriel M. Moreno (Democratic), House - Cosponsor: Stephanie Smith (Democratic), House ## Roll call votes | Date | Chamber | Motion | Result | Yes | No | Other | | --- | --- | --- | --- | --- | --- | --- | | 2026-04-13 | Senate | Third Reading Passed | pass | 45 | 0 | 2 | | 2026-02-26 | House | Third Reading Passed | pass | 136 | 0 | | ## Actions (12) - 2026-05-12: Approved by the Governor - Chapter 521 - 2026-04-13: Returned Passed (House) - 2026-04-13: Third Reading Passed (45-0) (Senate) - 2026-04-08: Favorable Adopted Second Reading Passed (Senate) - 2026-04-08: Favorable Report by Judicial Proceedings (Senate) - 2026-02-27: Referred Judicial Proceedings (Senate) - 2026-02-26: Third Reading Passed (136-0) (House) - 2026-02-24: Second Reading Passed (House) - 2026-02-24: Favorable Adopted (House) - 2026-02-23: Favorable Report by Judiciary (House) - 2026-01-30: Hearing 2/10 at 1:00 p.m. (House) - 2026-01-28: First Reading Judiciary (House) ## Bill text - Enacted, 2026-05-12: [PDF](https://mgaleg.maryland.gov/2026RS/Chapters_noln/CH_521_hb0593t.pdf) - Third Reading, 2026-02-24: [PDF](https://mgaleg.maryland.gov/2026RS/bills/hb/hb0593t.pdf) - First Reading, 2026-01-28: [PDF](https://mgaleg.maryland.gov/2026RS/bills/hb/hb0593f.pdf) ## Related bills - SB 0496: Maryland Medical Assistance Program - Coverage for the Treatment of Obesity - Authorization (became law) - SB 0366: Motor Vehicles - Intelligent Speed Assistance System Pilot Program - Establishment (became law) - SB 0244: Code Revision - Health - Maryland Medical Assistance Program (became law) - SB 0148: Income Tax - Credit for 9-1-1 Specialist Retirement Income (Supporting Our 9-1-1 Specialists Act) (became law) - SB 0016: Child Support - Earnings Withholdings Limits (became law) - HB 0529: Code Revision - Health - Maryland Medical Assistance Program (became law) ## Sources - [Enacted (PDF)](https://mgaleg.maryland.gov/2026RS/Chapters_noln/CH_521_hb0593t.pdf) - [Third Reading (PDF)](https://mgaleg.maryland.gov/2026RS/bills/hb/hb0593t.pdf) - [First Reading (PDF)](https://mgaleg.maryland.gov/2026RS/bills/hb/hb0593f.pdf) ## Related - [SB 0496: Maryland Medical Assistance Program - Coverage for the Treatment of Obesity - A…](https://policyrisk.com/state-bill/MD-SB0496-2026RS) - [SB 0366: Motor Vehicles - Intelligent Speed Assistance System Pilot Program - Establishm…](https://policyrisk.com/state-bill/MD-SB0366-2026RS) - [SB 0244: Code Revision - Health - Maryland Medical Assistance Program](https://policyrisk.com/state-bill/MD-SB0244-2026RS) - [SB 0148: Income Tax - Credit for 9-1-1 Specialist Retirement Income (Supporting Our 9-1-…](https://policyrisk.com/state-bill/MD-SB0148-2026RS) - [SB 0016: Child Support - Earnings Withholdings Limits](https://policyrisk.com/state-bill/MD-SB0016-2026RS) - [HB 0529: Code Revision - Health - Maryland Medical Assistance Program](https://policyrisk.com/state-bill/MD-HB0529-2026RS) - [Maryland bills](https://policyrisk.com/states/maryland/bills) - [Maryland state hub](https://policyrisk.com/states/maryland) - [All state legislation](https://policyrisk.com/state-bills) Source: PRIA, https://policyrisk.com/state-bill/MD-HB0593-2026RS (as of 2026-10-11).