A house of worship is, by definition, a place that welcomes everyone. Open doors are not a design flaw. They are a theological statement. They reflect a commitment to hospitality, community and service. Yet that same openness has become an increasingly attractive target for those who intend to cause harm.

Across the United States, churches, synagogues, mosques and other places of worship are experiencing a steady rise in violence, vandalism, threats and targeted attacks. In 2024, the United States recorded over 400 documented incidents of hostility against churches alone, which is an 800% increase from 2018. Armed incidents jumped from 12 to 28 in a single year. These incidents are not confined to any one faith tradition, geographic region or congregation size. They reflect a broader shift in the threat landscape facing faith communities nationwide.

Unlike corporate campuses, schools or government buildings, houses of worship cannot rely on controlled access as their primary security strategy. Their challenge lies in finding solutions that strengthen protection while preserving a welcoming atmosphere – a balance that demands moving beyond reactive measures toward proactive, layered security approaches. This includes the integration of advanced technologies such as AI-powered threat detection and intelligent video analytics capable of identifying potential threats before violence occurs.

This guide is designed to help faith leaders, security directors and facility managers navigate that journey.

THE THREAT LANDSCAPE

Understanding current threat trends is the first step toward building a comprehensive security strategy that protects places of worship while maintaining them open and accessible. The following facts and trends illustrate a sobering reality: the threats are diverse, escalating and targeting congregations across traditions.

Current trends

According to the Family Research Council's 2025 Hostility Against Churches report, documented hostile incidents against U.S. churches increased from 50 incidents in 2018 to 485 in 2023, which is nearly a tenfold increase. In 2024, the organization documented 415 incidents affecting 383 churches across 43 states, including vandalism, arson, bomb threats and armed incidents.

The report documented 28 gun-related incidents in 2024, more than double the 12 recorded in 2023. These included armed intrusions, shootings and incidents where firearms were brandished during worship services.

Although Christian churches experience the largest number of incidents in absolute terms because they comprise most U.S. congregations, Jewish synagogues and Muslim mosques experience disproportionately high rates of targeted attacks relative to their share of houses of worship.

The FBI consistently reports that:

● Religion-based hate crimes remain among the major categories of hate crime. ● Anti-Jewish incidents account for the majority of religion-based hate crimes. ● Anti-Muslim incidents remain elevated. ● Anti-Catholic and anti-Protestant incidents also occur annually.

The A-Mark Foundation reviewed targeted attacks between 2012 and 2022 and found that many attacks on houses of worship are targeted acts of violence motivated by ideological, religious or racial hatred rather than interpersonal disputes within the congregation.

Faith-based organizations are recognized by the U.S. government as soft targets, prompting dedicated security guidance from the Cybersecurity and Infrastructure Security Agency and security funding through the Federal Emergency Management Agency.

Notable Attacks on Houses of Worship

● Emanuel AME Church, Charleston, SC (June 17, 2015): 9 killed when a shooter attended Bible study before opening fire. ● Burnette Chapel Church of Christ, Tennessee (September 24, 2017): 1 killed, 7 wounded when a shooter opened fire in the parking lot before entering the church. ● Sutherland Springs First Baptist, Texas (November 5, 2017): 26 killed, 20 wounded in the deadliest mass shooting at a U.S. house of worship in modern history. Highlighted the vulnerability of rural congregations with limited law enforcement response times. ● Tree of Life Synagogue, Pittsburgh (October 27, 2018): 11 killed, 7 wounded during Saturday morning services in a hate-motivated attack. ● Lakewood Church, Houston, Texas (February 11, 2024): Shooter killed, 2 others wounded when an armed individual opened fire during a service. ● Annunciation Catholic Church, Minneapolis, Minnesota (August 27, 2025): 3 killed (including the shooter), 19 wounded when a rifle-wielding attacker fired from outside the church. Highlighted the vulnerability of outdoor and perimeter areas before worshippers enter the building. ● Grand Blanc Township LDS Church, Michigan (September 28, 2025): 4 killed, 8 wounded in a coordinated attack involving vehicle ramming, rifle fire, and arson. Highlighted the vulnerability of multi-phase attacks that combine different methods to bypass security measures.

THE UNIQUE CHALLENGE OF SECURING HOUSES OF WORSHIP

There are some factors that make it challenging to protect houses of worship as they directly conflict with hardened security postures.

● Open-access culture by design

Churches, synagogues, mosques, temples and gurdwaras exist to welcome strangers. Turning away an unknown visitor contradicts the institution's core mission. This makes standard access-control measures (badge systems, locked doors, visitor screening, bag searches, metal detector wands) culturally and theologically incompatible.

● Predictable schedules and gatherings

Services, holidays and events occur on well-publicized, recurring schedules. Attackers can plan around known windows when large numbers of people are concentrated and largely unguarded.

● Volunteer-dependent security teams

Unlike corporate or government facilities, most houses of worship rely on volunteers rather than trained security professionals. Even where "safety teams" exist, turnover is high and training is inconsistent.

● Multi-use, multi-population environments

Houses of worship serve children's programs, elderly congregants, community events, food banks and counseling services simultaneously, often in the same building on the same day. This multiplies entry points and blind spots.

● Diverse threat profile

Threats range from opportunistic property crime and vandalism to targeted hate-motivated violence, domestic disputes and, in rarer cases, mass-casualty attacks. Each requires different mitigations.

● Limited budgets

Security spending competes directly with programming, outreach and facilities budgets. Many houses of worship operate with minimal or no dedicated security funding.

Gaps in Standard Security Approaches

Most houses of worship that do invest in security still rely on a fairly dated toolkit, and it has real limitations. If cameras exist, they typically serve one purpose: providing after-the-fact footage for police. They don't help prevent an incident or interrupt one in progress. More often than not, those cameras are monitored by volunteers whose main function is to greet guests and usher people to their seats. Nobody is watching 12 monitors in real time during a Sunday service. Alarm systems and panic buttons are useful but only once something has already happened. But they do little to detect pre-incident indicators, such as someone loitering, casing the property, carrying a weapon or behaving erratically outside. Even when something suspicious is noticed, there's often no clear, fast protocol connecting it to law enforcement or a trained responder.

This is the gap where modern technology genuinely makes a difference, because it shifts security from reactive documentation to proactive detection.

HOW AI GUN DETECTION CAN SERVE HOUSES OF WORSHIP

Most attacks on houses of worship follow a similar pattern: an armed individual approaches, enters and only then begins firing. Detecting and warning others before the first shots are fired gives security personnel and congregants critical seconds to respond. AI-powered gun detection is designed to make it possible.

What faith community leaders should understand about AI-powered gun detection

● It works with the cameras you already have

AI weapon detection works on cameras already installed in a building. No new hardware infrastructure is required for most deployments. The system continuously analyzes video frames, looking for the visual signature of a firearm.

● It detects weapons, not people

The AI model is trained to recognize firearms by their visual characteristics (shape, size, the way they are held) across a wide range of camera angles, lighting conditions and distances. Critically, the system identifies the weapon, not the person holding it, which means it does not use facial recognition, does not track individuals and does not build profiles of congregants.

● It puts a human in the loop

When a weapon is detected, an alert (with the camera location, timestamp and a captured image) is generated and delivered immediately to designated security personnel via mobile app, SMS or integrated alarm system. A human reviews and responds. The technology extends human capability. It does not replace human judgment.

PRACTICAL DEPLOYMENT GUIDE FOR HOUSES OF WORSHIP

Protecting a congregation begins with informed decisions. This guide provides faith community leaders with a practical, step-by-step framework for evaluating, selecting and deploying AI-powered gun detection technology as part of a comprehensive, layered security strategy.

Step 1

Conduct a vulnerability assessment. Before considering technology, document:

● Entry points and current lock/access status ● Peak attendance times ● Past incidents (even minor ones such as vandalism, disturbances, trespassing) ● Any specific threats tied to your community's identity or profile ● Current camera coverage and blind spots

Step 2

Audit existing camera infrastructure. Once the need is established, focus on technical feasibility. AI weapon detection works on existing cameras in most cases, but camera placement, resolution, and coverage angles determine detection effectiveness.

Audit coverage for:

● Main entrance and foyer coverage ● Sanctuary/main worship space entry points ● Parking lot and vehicle approach routes ● Secondary entrances and side doors ● Children's program areas

Step 3

Evaluate vendors. Request verified performance data and evaluate integration.

Ask vendors:

● What is your false positive rate? False negative rate? In what conditions were these tested? ● Has this been independently tested (academic, government or law enforcement validation)? ● How does performance change in low light, crowds or at a large distance? ● Where is footage/data stored, and for how long? ● Is biometric data (facial recognition) collected? ● Does it work with your current cameras or require full replacement? ● Can it integrate with door locks, mass notification systems and existing alarms into one unified response, or will your team be juggling separate dashboards?

Step 4

Define the alert workflow. Technology is only as effective as the human response it enables.

Before deployment, define:

● Who receives alerts (volunteer security team, staff, law enforcement liaison) ● How alerts are delivered (mobile app, SMS, dedicated monitor) ● What the response protocol is for each alert type ● How to communicate with law enforcement when an alert is verified

Step 5

Address the congregation communication question. The rollout should be transparent and incremental to maintain community trust.

Hold a congregational meeting or send written communication explaining:

● Why this decision was made (tie back to the risk assessment, not fear-based messaging) ● What data is and isn't collected ● How privacy is protected

Step 6

Test under realistic conditions. Any AI detection system should be tested under the actual lighting, camera positioning and crowd conditions of a real service, not just in a controlled demonstration environment. Request an on-site validation before committing to a deployment.

Even after full deployment, treat AI detection as one layer in a broader safety culture:

● Trained, alert greeters and ushers ● A direct relationship with local law enforcement (regular walkthroughs, a direct contact line) ● Clear, rehearsed lockdown and evacuation procedures ● Basic environmental design (lighting, locked secondary doors, clear sightlines)

BUILDING A LAYERED SECURITY STRATEGY

There is no single solution that can eliminate the risk of violence at a house of worship. Effective security is built through multiple layers that work together to deter threats, improve situational awareness and enable a timely response. The right combination of measures will vary depending on a congregation's size, location, risk profile, resources and values, but the underlying principle remains the same: security should strengthen protection without undermining the openness and sense of community.

Layer 1 — Environmental Design (CPTED) Security begins long before someone reaches the front door. Crime Prevention Through Environmental Design (CPTED) uses the physical environment to discourage hostile behavior. Well-designed lighting, clear sightlines, thoughtful landscaping, visible entrances, intuitive wayfinding and parking layouts help increase natural surveillance and reduce opportunities for suspicious activity. These improvements are often among the most cost-effective ways to enhance security.

Layer 2 — Access Awareness Unlike many public facilities, houses of worship cannot depend on strict access control. But they should know what is happening at their entrances. Greeters, ushers and trained volunteers can play an important role in maintaining situational awareness. Simple training in recognizing concerning behavior, understanding reporting procedures and observing activity around entrances can significantly improve early threat recognition.

Layer 3 — AI-Powered Weapon Detection AI-powered weapon detection uses existing security cameras to continuously monitor entrances and shared spaces for visible firearms and provides security personnel with verified real-time alerts of a weapon being drawn. Because the system operates passively in the background, it does not require congregants to pass through checkpoints or alter the welcoming experience. As part of a layered strategy, AI extends the capabilities of staff and volunteers by helping identify threats earlier, when valuable response time can make the greatest difference.

Layer 4 — Perimeter and Exterior Monitoring For larger campuses or multi-building worship centers, security should extend beyond the sanctuary itself. Monitoring parking lots, pedestrian approaches, building perimeters and vehicle access points can help identify suspicious activity before a threat reaches occupied spaces. Early awareness provides additional time to assess the situation, notify responders and implement protective measures.

Layer 5 — Response and Incident Management Technology alone does not improve safety. Every house of worship should have a documented and regularly practiced response plan that defines roles, communication procedures, emergency notifications, coordination with law enforcement, lockdown or evacuation decisions and post-incident accountability. Regular training and exercises help ensure that staff, volunteers and security teams can respond quickly and confidently under stress.

FUNDING YOUR SECURITY PROGRAM

Limited budgets are one of the biggest obstacles preventing faith communities from strengthening their security posture. Fortunately, many houses of worship may be eligible for federal funding specifically intended to help nonprofit organizations reduce the risk of targeted violence.

The Federal Emergency Management Agency (FEMA) Nonprofit Security Grant Program (NSGP) provides funding for physical security enhancements and related preparedness activities for nonprofit organizations at high risk of terrorist or other extremist attack. In FY 2026, Congress appropriated $300 million, divided equally between urban-area and state programs. Eligible organizations include houses of worship, religious schools, community centers, museums, medical facilities and other nonprofit organizations.

NSGP funding may be used for a wide range of security improvements, including:

● Security cameras and video surveillance systems ● AI-powered video analytics and weapon detection technologies ● Access control systems, doors, locks and other target-hardening measures ● Security planning and vulnerability assessments ● Security training and exercises for staff and volunteers

Grant limits and eligible projects may vary by state, but many states allow awards of up to $200,000 per facility, enabling multi-campus organizations to secure funding for multiple locations where permitted.

Applications are not submitted directly to FEMA. Instead, nonprofit organizations apply through their State Administrative Agency (SAA) or state homeland security office. Most applications require a vulnerability assessment and a clear explanation of how the proposed investments will reduce identified risks. Organizations with documented risk factors and well-developed security plans are generally more competitive.

The FY 2026 NSGP application cycle opened on June 24, 2026. Because application windows open annually and each state establishes its own submission deadlines and requirements, organizations should begin planning early and contact their state homeland security agency as soon as possible. For the latest program guidance, eligibility requirements, and application resources, visit FEMA Nonprofit Security Grant Program (NSGP).

SOURCES

A-Mark Foundation. (2023, October). Violent Attacks on Houses of Worship. https://amarkfoundation.org/reports/violent-attacks-on-houses-of-worship/

Cybersecurity and Infrastructure Security Agency (CISA). (2024). Mitigating Attacks on Houses of Worship: Security Guide. https://www.cisa.gov/sites/default/files/publications/Mitigating%20Attacks%20on%20Houses%20of%20Worship%20Security%20Guide_Fact%20Sheet_508.pdf

Family Research Council. (2025, August). Hostility Against Churches Report. https://www.frc.org/newsroom/frc-publishes-new-edition-of-hostility-against-churches-report-indicating-over-400-acts-of-hostility

Federal Bureau of Investigation (FBI). Crime Data Explorer. https://cde.ucr.cjis.gov/LATEST/webapp/#/pages/home

Federal Bureau of Investigation (FBI). Active Shooter Incidents in the United States, 2000–2018. https://www.fbi.gov/how-we-can-help-you/active-shooter-safety-resources/active-shooter-incidents-from-2000-to-2018

Federal Bureau of Investigation (FBI). FBI Detroit Update on Shooting and Fire at Grand Blanc LDS Church. https://www.fbi.gov/contact-us/field-offices/detroit/news/fbi-detroit-update-on-shooting-and-fire-at-grand-blanc-lds-church

Federal Emergency Management Agency (FEMA). Nonprofit Security Grant Program (NSGP). https://www.fema.gov/grants/preparedness/nonprofit-security

Federal Emergency Management Agency (FEMA). (2025). Fiscal Year 2025 Nonprofit Security Grant Program Notice of Funding Opportunity. https://simpler.grants.gov/opportunity/8d1e3e07-24bf-480b-a9ff-694fdf38f052

Federal Emergency Management Agency (FEMA). (2026). Fiscal Year 2026 Nonprofit Security Grant Program: Key Changes. https://www.fema.gov/sites/default/files/documents/fema_gdp_FY26_NSGP_Key_Changes.pdf

Homeland Security and Emergency Management Agency (HSEMA), Washington, DC. Applying for the Nonprofit Security Grant Program. https://hsema.dc.gov/nsgp

British Broadcasting Corporation (CBC). (2025). Coverage of the Grand Blanc Township Church Attack. https://www.cbc.ca/lite/story/1.7618933?feature=related-link

CBS News Texas. (2024). Authorities Respond to Shooting at Joel Osteen's Lakewood Church. https://www.cbsnews.com/texas/news/authorities-respond-to-reported-shooting-near-houston-church/

U.S. News & World Report. (2025, October). Fear and Vigilance Rise as Attacks on Houses of Worship Intensify Worldwide. https://www.usnews.com/news/best-states/michigan/articles/2025-10-10/fear-and-vigilance-rise-as-attacks-on-houses-of-worship-intensify-worldwide

Voice of America (VOA). House of Worship Shootings. https://projects.voanews.com/mass-shootings/english/locations/worship.html