Facial Recognition Access Control Without Rip-and-Replace: Add Biometric Entry to the Doors You Already Have With Acre

A badge only proves that someone is holding a badge. It does not prove who that person is. Key fobs get shared, cards get lost, and PIN entry codes travel faster than any policy can control. When an incident happens, your audit logs show which credential opened the door, not which person walked through it.

Facial recognition access control closes that gap by tying every entry decision to the individual. For most organizations, the hard part is not whether the technology works. It is how to add it without replacing the existing access control infrastructure that already runs your doors, how to keep facial data compliant, and how to roll it out without disrupting operations.

That is where Acre comes in. Acre's access control platforms, including Acre Access Control in the cloud and Access It! and DNA Fusion on-premises, support biometric reader integration alongside cards, mobile credentials, and PINs. Acre Professional Services works with you, directly or alongside your integrator, from the first pilot door to a multi-site rollout, at a pace set by your organization rather than a vendor timeline.

Note: If you want hands-free entry at your most sensitive doors but cannot justify replacing the system you already run, then talk to the Acre team about adding biometric access to your current access control infrastructure. Talk to the Acre team

Why Security Leaders Choose Acre for Facial Recognition Access Control

Physical credentials create three recurring problems for security and facilities teams, and each one points toward facial biometric access control.

• Credential sharing and loss. Cards and key fobs can be lent, lost, or stolen. Every lost card means a deactivation, a replacement, and administrator time. Face recognition removes the object that can be handed to someone else.
• Weak audit trails. A card read tells you a credential was used. A facial recognition system logs the face verification against a specific employee profile, so audit logs reflect people rather than plastic.
• Friction at busy entrances. Staff carrying equipment, clinicians moving between wards, and employees arriving at shift change all slow down at a card reader. Facial recognition enables hands free entry, with automated verification completed in a fraction of a second.

Acre's role is to turn that verification result into an access decision. The reader identifies the person. The Acre Security platform applies access permissions, schedules, and rules, triggers the door release, and records the event. That separation matters. It lets you choose the biometric hardware that fits each door while keeping centralized management of every user, credential, and access point in one Acre system.

The administrative load compounds for businesses running multiple offices. Every new hire, role change, and departure touches credentials at each site. With facial biometric access control connected to Acre, access management happens once, in the platform, and the change applies at every door the person is permitted to use. Removing a user removes their access everywhere, with no card left in a drawer to recover.

How Facial Recognition Works Inside an Acre Access Control System

How does facial recognition know who you are? It does not compare photos the way a person would. It measures facial features and converts them into a mathematical template. Here is how that process runs when a facial recognition reader is connected to an Acre platform.

1. Enrollment. An administrator enrolls each user once. The reader captures facial data and creates a template that is stored in the face database and linked to the user's employee profile and access permissions.
2. Capture. As a person approaches the entry point, the reader's camera captures an image. Readers use 2D, 3D, or infrared (IR) cameras, and a dual-lens camera enhances face recognition accuracy in mixed lighting.
3. Matching. The reader compares the live capture against stored templates. In one-to-one face verification, the person presents another credential and the system confirms the face matches that identity. In one-to-many identification, the system searches the full face database.
4. Decision. The match result passes to the access controller, which manages access rules and triggers door releases. If the user is authorized for that door at that time, the controller triggers automatic unlocking.
5. Record. Every access attempt, granted or denied, is logged in Acre for reporting, auditing, and investigation.

Because the controller and the lock do the physical work, facial recognition systems can integrate with existing access control hardware. Power over Ethernet (PoE) simplifies reader installation by carrying power and data on one cable, and door hardware such as magnetic locks, which can hold up to 1,200 lbs of force, often stays in place. Your integrator and the Acre team confirm compatibility door by door during design.

Acre Platforms That Support Biometric Access Control

Acre does not force a single deployment model. The right platform depends on where you want access data to live, how many sites you manage, and which systems your facial recognition events need to reach. The best solution for a single office is rarely the best solution for a 600-door campus, which is why Acre offers both cloud and on-premises access control systems.

Acre Access Control: Cloud-Managed Biometric Access Across Every Site

Acre Access Control is Acre's cloud-native SaaS platform, powered by the Feenics platform. It supports mobile and biometric access control options with third-party reader compatibility, alongside multi-site administration, real-time alerts, and analytics dashboards. Administrators can grant and revoke access instantly, schedule door access, monitor alarms from any device, and initiate building or campus lockdowns with a single action. Automatic daily backups and multi-server redundancy keep the service available.

For companies adding facial recognition across distributed offices, that means one place to manage every enrolled user, regardless of which building they walk into.

Access It!: On-Premises Biometric Access Control on Mercury Hardware

For organizations with data residency requirements or air-gapped environments that cannot route access control data through the cloud, Access It! keeps biometric access control within your own infrastructure. It is Acre's flagship on-premises platform, built on Mercury hardware with an open architecture that supports biometric reader integration. Version 12.1.0 includes remote desktop and mobile access for administrators.

Access It! also handles scale. Western Kentucky University runs approximately 20,000 active identities and around 600 controlled access points on the platform, with ERP-driven automation assigning and updating access from verified identity data.

DNA Fusion: Biometric Access Events Alongside Video, Intrusion, and Audio

DNA Fusion is designed for organizations that need to manage access control, video, intrusion, and audio as a unified system. For facial recognition deployments, that keeps biometric access events in the same operational environment your team already uses for video and alarms, rather than adding another standalone tool to monitor.

Multiple Authentication Methods, Managed in One Acre Platform

Facial recognition rarely replaces every credential on day one, and it does not have to. Building-grade facial recognition systems support multiple credential types simultaneously, and Acre platforms are built for mixed environments where smartcard, proximity, BLE mobile, PIN, and biometric credentials coexist. That flexibility lets you match how users authenticate to the risk at each door.

Multi Factor Authentication for High Security Doors

For server rooms, pharmacies, research labs, and executive suites, pairing biometric authentication with a second factor raises assurance. A common configuration requires a card or PIN entry followed by face verification, so a stolen card alone cannot open the door.

An Irish Leinster-based County Council working with Acre replaced cloneable RFID cards with encrypted credentials and moved to cloud-based centralized control with MFA across its council buildings. The same layered approach applies when biometric verification becomes one of the factors.

Acre Wallet: Biometric Protection on the Phone Employees Already Carry

Acre Wallet delivers secure mobile credentials over BLE and NFC, protected by the phone's Face ID or fingerprint. For doors where a dedicated facial recognition reader is not justified, Acre Wallet adds a biometric layer without enrolling users in a central face database, because the biometric check happens on the user's own device.

Security teams evaluating phone-based biometrics often ask whether someone can unlock a phone with Face ID while its owner is asleep. On iPhone, Apple's Face ID includes an attention-aware setting, enabled by default, that requires the user's eyes to be open and looking at the device. Organizations that rely on phone biometrics should confirm that setting is enforced through their mobile device policies.

Backup Credentials for Users Who Opt Out

Some employees will decline biometric enrollment, and in several jurisdictions they have that right. Backup credentials are necessary for those users. Acre platforms let you keep a card, mobile credential, or PIN active for them, so multiple access methods remain available without creating a second system to manage.

Where Acre Customers Deploy Facial Recognition First

Not every door needs face recognition. The strongest return comes from doors where credential sharing is a real risk, where throughput matters, or where hands are rarely free. When planning a rollout on an Acre access control system, prioritize these locations:

• High security doors such as data rooms, server rooms, pharmacies, and research labs, where biometric verification confirms the person and not just the card.
• Main building entrances with heavy morning traffic, where face recognition keeps lines moving without a card reader bottleneck.
• Access control for healthcare and manufacturing areas where staff wear gloves or carry equipment, and contactless authentication supports hygiene and safety.
• Large-scale environments such as airports and campuses, where face recognition is well suited to high volumes of enrolled users.

Starting with a short list of priority doors keeps the first phase focused, keeps enrollment manageable, and gives your team clear evidence before you expand facial biometric access control to more of the estate. Acre's access management tools let you run biometric doors and card doors side by side for as long as you need.

Temporary Access for Visitors and Contractors With Acre Identity by TDS

Visitors, contractors, and temporary workers are rarely enrolled in a face database, and they should not have to be. Acre Identity, powered by the TDS product suite, handles temporary access through pre-registration, ID verification, self-service kiosks, badge printing, and policy acknowledgment.

Its compliance and audit toolkit maintains detailed access logs, ID records, and policy alerts, and it integrates across access control, HR, and IT with no rip-and-replace required. Integration with visitor management enhances access control efficiency: enrolled employees move through building entrances hands-free, while visitors are verified and badged through a controlled process that still appears in your records. For property managers running multi-tenant offices, that split keeps tenant employees and guests on separate, auditable paths.

Facial Recognition Compliance and Privacy, Planned Into Every Acre Deployment

Is facial recognition illegal? For access control in most places, no. But biometric data is regulated, and the rules vary by location. Privacy concerns arise from the collection and storage of facial data, which makes compliance with data privacy frameworks a design requirement rather than an afterthought.

• Illinois. The Biometric Information Privacy Act (BIPA) requires written consent before biometric data is collected, along with a publicly available retention and destruction policy.
• Other U.S. states. State laws vary on biometric privacy requirements and consent. Texas and Washington, for example, have their own biometric statutes.
• EU and UK. Under GDPR and UK GDPR, biometric data used to uniquely identify a person is special category data, which requires a lawful basis and additional safeguards.
• Local rules. Some cities restrict private use of facial recognition in places of public accommodation, which can affect customer-facing entrances.

This is general information, not legal advice. Confirm the requirements for each site with your legal counsel before enrollment begins.

The Data Policies Your Acre Facial Recognition Deployment Needs

Organizations must establish clear policies for data collection and retention before the first user is enrolled. At a minimum, cover these points:

• Documented, written consent from each enrolled user where required.
• A biometric data retention policy that is documented and followed, including deletion when an employee leaves.
• Facial data encrypted in transit and at rest.
• Access to biometric data limited to authorized administrators.
• Backup credentials for anyone who opts out.

Acre supports these policies through deployment choice and planning. Access It! keeps biometric access data inside your own infrastructure for organizations that cannot use the cloud. Acre Identity's compliance and audit toolkit supports requirements from GDPR to internal governance. Acre Professional Services Strategy and Design engagements include architecture and deployment planning, so data flows are decided before the first reader is installed.

Anti-Spoofing Standards to Require From Readers You Connect to Acre

Facial recognition systems can be vulnerable to spoofing through printed photos, screen replays, or videos. ISO/IEC 30107 defines standards for presentation attack detection, and liveness detection belongs on your requirements list for every reader. Account for these known vulnerabilities as well:

• Environmental conditions. Performance can be affected by lighting and camera angles, so backlit lobbies, glass entrances, and outdoor doors need specific evaluation.
• Demographic performance. Facial recognition technology may exhibit higher error rates across different demographics. Testing should evaluate performance across actual user populations and conditions.
• Accuracy settings. Match thresholds that are too loose admit the wrong person. Thresholds that are too strict reject authorized users and push staff back to workarounds.

Acre Professional Services provides validation and commissioning support, including checklists, best practices, and escalation, so pilot test results reflect how the system performs at your doors rather than in a vendor lab.

What a Facial Recognition Door Lock Costs, and How Acre Keeps Spend Predictable

How much does a face recognition door lock cost? There is no single price, because the lock is only one part of the system. Implementation costs are driven by hardware and software, and the total depends on:

• The number and type of facial recognition readers, and which doors need them.
• Door hardware changes, if existing locks cannot be reused.
• Controllers, cabling, and PoE switching.
• Software licensing, which differs between cloud and on-premises deployments.
• Enrollment effort for your user population.
• Ongoing maintenance and support.

The biggest variable is whether you replace or reuse. Because Acre platforms connect biometric readers to controllers and door hardware you may already own, many organizations can add facial recognition to priority doors without rip-and-replace. Facial recognition can also reduce the administrative work associated with issuing, replacing, and deactivating physical credentials.

Note: If you need to justify biometric access to finance before a pilot, then model the numbers first. The Acre TCO calculator estimates long-term ownership costs so you can compare options on facts. Estimate your costs with the Acre TCO calculator

Enterprise Organizations Trust Acre Access Control

A facial recognition reader is only as dependable as the access control platform making the decision. Acre access control runs in demanding environments across education, hospitality, and enterprise.

• Western Kentucky University consolidated fragmented legacy systems onto Access It!, and its bi-directional Milestone integration connects door events and camera feeds across large residential housing projects.
• Randstad Belgium unified access control, video, and intrusion on Acre Access Control across its headquarters and more than 100 branches, with no on-site servers to maintain.
• Rockhurst University and UCF rely on Acre access control to protect their campus communities.
• The Ritz London selected Acre for an access control solution suited to one of the world's best-known hotels.
• Palo Alto Networks trusts Acre access control to protect its facilities.

These are access control deployments rather than facial recognition case studies. They show the platform your biometric readers connect to: the permissions, automation, integrations, and audit logs that turn a face verification into a trusted access decision.

Deploy Facial Recognition at Your Own Pace With Acre

Most organizations do not want to switch every door to biometrics at once. Acre works with you on any deployment, whether cloud, on-premises, or hybrid, and at the pace your organization sets.

Start With a Single-Door Acre Pilot

Acre teams commonly run pilots before wider rollouts. Start with one high-value door, such as a data room or executive floor, enroll a defined group, and measure throughput, false rejections, and user feedback. Prove the value, then template it for the next site. That way, every expansion decision is based on your own results.

Scale With Acre Professional Services and Acre Care

Acre Professional Services supports each phase of delivery: strategy and design, implementation and integrations, migration enablement, and in-person or virtual training. It works partner-led or direct and complements your integrator rather than replacing them. After go-live, Acre Care provides ongoing support.

Randstad's deployment shows the model in practice. Acre, integrator G4S, and distributor SmartSD worked together in a structure that let the project move at the customer's pace, starting with access control and expanding to video and intrusion as the business was ready.

Open platforms, flexible deployment models, and a team that works at your pace are why Acre is the best access control security company to work with when you add facial recognition to your security strategy.

Bring Facial Recognition to Your Doors With Acre

Facial recognition access control removes shared credentials, strengthens audit logs, and gives authorized users hands-free entry. Acre makes it practical by connecting biometric readers to the access control platform you choose, keeping compliance in the plan, and rolling out one door at a time if that is what your organization needs.

If lost cards, shared fobs, and audit gaps are costing your team time, then talk to the Acre team about a facial recognition pilot on your existing doors, deployed at your pace. Talk to the Acre team