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One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware matchSecure a government website by reducing unnecessary internet exposure, enforcing phishing-resistant multi-factor authentication (MFA) for every account that can publish or administer content, keeping the CMS and hosting stack supported and patched, and building tamper-resistant logging with a tested response process. Keep the public site reachable where its mission requires it, but place administration, deployment, and management interfaces behind tightly controlled access. The exact design must fit the agency’s CMS, hosting model, jurisdiction, procurement rules, and incident-response policy.
Start with an exposure inventory, not a firewall rule
Unauthorized changes usually become possible through an overlooked administrative portal, an abandoned service, a stolen privileged credential, or an unpatched public-facing component. Create one authoritative inventory before changing access. CISA’s exposure-reduction guidance recommends identifying internet-accessible assets, removing unnecessary exposure, and reassessing what remains as the environment changes.
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What to include
- Every public website, microsite, API endpoint, and content-delivery origin.
- CMS administration panels, editorial workflows, preview environments, staging sites, and deployment consoles.
- Hosting control panels, cloud management interfaces, remote-support tools, VPN gateways, jump hosts, and monitoring consoles.
- DNS, certificate-management, storage, database, and identity services that could redirect traffic or alter published content.
- Third-party integrations and accounts used by contractors, communications staff, or emergency publishers.
Decide what must be reachable
Separate public content delivery from administration. A public homepage may need to be reachable by everyone; its CMS login, deployment service, database, and hosting console generally do not. For each asset, record its owner, purpose, dependencies, support status, authentication method, and reason it is exposed. Remove unused services and restrict management interfaces to an approved network path. Check dependencies before blocking an endpoint so that certificates, accessibility services, emergency publishing, or statutory notices do not fail unexpectedly.
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For systems that must remain exposed, CISA advises changing default passwords, applying current security patches, using a secure monitored access path such as a jump host, monitoring traffic, and enabling MFA where possible. These measures protect the administration plane while the public delivery plane continues to serve residents. Schedule recurring inventory reviews whenever a site, vendor, domain, or hosting arrangement changes.
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Protect every account that can change content
Require MFA for privileged and remote access, beginning with CMS administrators, deployment accounts, hosting administrators, identity administrators, and emergency-publishing accounts. CISA’s SLTT guidance identifies a physical security key such as a YubiKey as a preferred MFA method where supported. A FIDO security key can protect an administrator credential from many phishing attacks, but it does not patch the CMS, secure hosting, or reveal that a page was altered; treat it as one layer in a broader control set.
Prioritize phishing-resistant MFA
Use a FIDO-compatible hardware key for privileged users when the CMS, identity provider, and agency policy support it. Verify browser, operating-system, mobile, recovery, and accessibility compatibility before procurement. Maintain an approved spare-key and account-recovery process that does not bypass MFA during an emergency. If a system cannot support phishing-resistant MFA, require the strongest supported alternative, document the exception, restrict the account’s access, and monitor it more closely.
Apply least privilege and clean up identities
- Remove default accounts and disable unused or departed-user accounts.
- Give editors only the permissions needed for their publishing duties; reserve template, plugin, code, user-management, and hosting rights for separate administrators.
- Use named accounts rather than shared credentials. If an operational constraint requires a shared emergency account, record its custodian, rotate its secret, and log every use.
- Review contractor, vendor, and temporary access at defined intervals and at the end of each engagement.
- Separate day-to-day editorial accounts from high-impact configuration and deployment accounts.
Watch authentication behavior
Collect failed-login events, successful logins, MFA changes, password resets, new tokens, privilege changes, and use of emergency accounts. Investigate unusual locations, impossible travel, unfamiliar devices, bursts of failures, and logins immediately followed by publishing or configuration changes. Do not treat a successful MFA event as proof that the resulting action was authorized; correlate identity activity with the change itself.
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Keep the CMS and hosting stack supported
Maintain supported versions of the operating system, web server, CMS, themes, plugins, libraries, containers, hosting components, and security tools. CISA’s SLTT essentials and exposure-reduction guidance call for prompt security updates and replacement of unsupported platforms where feasible. They do not establish one universal patch deadline for every agency or component, so set priorities through the agency’s risk and vulnerability-management policy.
Prioritize what is reachable and consequential
- Identify critical vulnerabilities affecting internet-facing systems, administration interfaces, authentication, file upload, remote code execution, or privilege boundaries.
- Test updates in a representative staging environment, including publishing, forms, accessibility functions, integrations, and rollback procedures.
- Deploy the update through a controlled change process and verify the running version afterward.
- Record exceptions, their business justification, compensating controls, owner, and target replacement date.
Handle unsupported software as a temporary risk
Plan migration or replacement for systems that no longer receive security updates. Until migration is complete, reduce their exposure, put administration behind a monitored jump host or equivalent restricted path, remove unnecessary accounts and services, and increase logging and review. Isolation lowers opportunity; it does not make obsolete software safe.
Design the publishing path so a stolen login has less reach
Map how an approved edit travels from an editor’s device to the public site. The path should identify where authentication occurs, where content is reviewed, which system performs deployment, and which component serves the final files. Use separate privileges for editing, approval, deployment, and infrastructure administration where the CMS supports them.
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Keep administrative interfaces off the public edge
Place CMS administration, hosting consoles, source repositories, and deployment controls behind an agency-managed access path. A jump host, private network route, or equivalent monitored gateway can provide a single point for MFA, session logging, and access review. Do not expose a management interface merely because the public site itself must be reachable.
Control high-impact publishing actions
- Require review or approval for changes to homepages, emergency banners, templates, scripts, navigation, and user permissions.
- Restrict who can upload executable files, alter templates, install extensions, or change DNS and certificates.
- Use a deployment identity with only the permissions needed to publish approved artifacts.
- Record the editor, approver, deployment identity, timestamp, source address, and resulting version for each release.
- Keep an emergency publishing procedure that is fast but still authenticated, logged, and reversible.
Detect unauthorized changes with useful, protected logs
Prevention is not enough: a defacement can occur between reviews or through an account that appears legitimate. CISA’s logging guidance recommends collecting relevant events, centralizing records, protecting them from tampering or deletion, and alerting on high-risk activity.
Collect the events needed to reconstruct a change
- CMS logins, logouts, failed attempts, MFA events, password resets, token creation, and account changes.
- Content creation, edits, publication, unpublication, deletion, media uploads, template changes, plugin or extension changes, and workflow approvals.
- Operating-system, web-server, database, cloud-console, identity-provider, firewall, and remote-access events.
- Deployment jobs, source-control changes, configuration changes, DNS or certificate updates, and administrative API calls.
- Relevant network activity, including unusual requests, upload patterns, and access to administration paths.
Centralize and protect the records
Forward logs to a central service so an intruder who reaches the website cannot erase the only copy. Restrict and monitor access to the logging system, use separate administrator roles, and store records in a way that makes alteration or deletion difficult. Synchronize system clocks so events from the identity provider, CMS, host, and network controls can be ordered during an investigation. Define retention in the agency’s policy and legal requirements rather than assuming one period fits every jurisdiction.
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Alert on high-risk activity
Start with repeated failed logins, privilege escalation, new administrator accounts, MFA changes, access to management paths from unusual sources, bulk content edits, template or plugin changes, and publication outside an approved workflow. Tune alerts to the agency’s staffing capacity: an alert that nobody can review promptly is not an effective control. Review logs routinely even when no alert fires.
Baseline normal content and investigate unexpected differences
Establish what the public site normally looks like and which files, records, templates, and configuration values are expected. Compare current content with the approved release or a known-good baseline. A change-detection process can be implemented through the CMS’s revision history, deployment records, scheduled checks, or file and configuration monitoring; the cited CISA guidance supports the logging and monitoring objective but does not prescribe a particular file-integrity product or configuration.
Define a change that requires investigation
- A page changes without a matching ticket, approval, and deployment record.
- A new administrator, plugin, template, scheduled task, redirect, or external script appears.
- Content changes at an unusual time, from an unfamiliar account, or immediately after suspicious authentication activity.
- Multiple pages change at once, the homepage is replaced, or visitors are redirected to an unrelated destination.
- Logs stop arriving, timestamps become inconsistent, or an administrator attempts to alter monitoring settings.
Preserve evidence before cleaning up
When a difference is detected, preserve relevant central logs, deployment records, screenshots, affected files, and account activity before overwriting the environment. Limit access to the evidence and record who collected it and when. This supports technical investigation and any legal, regulatory, or law-enforcement coordination required by the agency.
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- WORKS WITH 1000+ ACCOUNTS: Compatible with Google, Microsoft, and Apple. A single Security Key C NFC secures 100 of your favorite accounts, including email, password managers, and more.
- FAST & CONVENIENT LOGIN: Plug in your Security Key C NFC via USB-C and tap it, or tap it against your phone (NFC) to authenticate. No batteries, no internet connection, and no extra fees required.
- TRUSTED PASSKEY TECHNOLOGY: Uses the latest passkey standards (FIDO2/WebAuthn & FIDO U2F) but does not support One-Time Passwords. For complex needs, check out the YubiKey 5 Series.
Prepare a response that covers technology, communications, legal, and continuity
Assign incident roles and contacts before an event. CISA recommends a response team that includes technology, communications, legal, and continuity responsibilities. Put those assignments in the agency’s incident-response plan, along with escalation paths for the hosting provider, identity provider, law enforcement, and leadership.
First actions when defacement is suspected
- Confirm the report from an independent network or monitoring source and capture the affected URL, time, visible content, and screenshots.
- Activate the incident lead and preserve central logs and other evidence.
- Contain the likely access path: disable or isolate a compromised account, revoke active sessions or tokens, restrict the administration interface, and pause automated deployment if necessary.
- Determine scope across websites, subdomains, APIs, storage, DNS, and hosting consoles rather than assuming only one page changed.
- Coordinate public messaging with communications and legal teams. Do not publish unverified technical or personal details.
- Restore from a known-good, verified release only after identifying and closing the entry path. Rotate affected credentials and validate MFA and permissions.
- Increase monitoring after restoration and document lessons, control changes, and outstanding risks.
The available CISA material supports logging and response-team planning but does not establish a universal restoration runbook, backup-retention schedule, or notification deadline. Follow the agency’s approved plan and applicable jurisdictional rules for those decisions.
Use a recovery design that can prove what was restored
Maintain known-good website releases and configuration exports that can be verified before use. Keep restoration materials separate from the production administration path so an attacker who alters the live site cannot silently replace every recovery copy. Test that the agency can restore content, templates, media, integrations, DNS, certificates, and access controls—not just a database.
Validate before returning to service
- Confirm the restored code, content, extensions, and configuration match an approved version.
- Check administrator accounts, MFA enrollment, privileges, tokens, scheduled jobs, redirects, and external scripts.
- Run accessibility, form, search, privacy, and security checks appropriate to the site’s mission.
- Review logs from the restoration window and maintain heightened monitoring for follow-on activity.
Government resources that may help
CISA’s resource directory lists no-cost services that may support vulnerability scanning, web-application scanning, SaaS configuration assessment, and centralized logging, including Cyber Hygiene scanning, SCuBA, and Logging Made Easy. Availability and eligibility can change, so an agency should confirm that a service applies to its environment, authority, data-handling requirements, and procurement rules before deployment.
These services complement—not replace—asset ownership, patch management, MFA, protected logs, change control, and an incident-response plan.
Compare implementation choices by risk, not by product name
| Decision axis | Questions for the agency | Evidence of a stronger implementation |
|---|---|---|
| Internet exposure | Which interfaces must be public, and which can use a restricted access path? | Public delivery remains available while administration and management are restricted and monitored. |
| Administrator MFA | Can privileged users use phishing-resistant MFA, and how is recovery controlled? | Privileged and remote access require MFA, with hardware security keys used where compatible and permitted. |
| Support and patchability | Are the CMS, plugins, operating systems, and hosting components supported? | Critical public-facing vulnerabilities are prioritized; unsupported systems have migration plans and compensating controls. |
| Logging and integrity | Can the agency correlate identity, CMS, deployment, host, and network events? | Logs are centralized, access-controlled, protected from tampering, reviewed, and alert on high-risk activity. |
| Response capacity | Can staff contain, communicate, investigate, and restore at any hour the site requires? | Named technical, communications, legal, and continuity roles have current contacts and practiced procedures. |
A practical implementation sequence
- Week one: establish ownership. Name the service owner, security lead, communications contact, legal contact, continuity lead, hosting contact, and emergency publisher. Freeze unidentified privileged access until ownership is resolved.
- Inventory and classify. Enumerate public sites, administration paths, hosting consoles, dependencies, accounts, and software versions. Mark each item as required exposure, restricted exposure, or removable exposure.
- Close obvious access gaps. Remove default and unused accounts, change default passwords, restrict management interfaces, require MFA for privileged access, and verify that logs reach a central destination.
- Stabilize the platform. Patch supported components, isolate unsupported ones, document exceptions, and schedule replacement work.
- Instrument publishing. Capture editor, approver, deployment, and configuration events. Establish a known-good baseline and alerts for high-impact changes.
- Exercise the response. Simulate a homepage defacement and a compromised administrator. Test evidence preservation, account containment, public communications, restoration, and post-incident monitoring.
- Reassess continuously. Repeat the exposure inventory, permission review, patch review, log review, and recovery test as the website, staff, suppliers, and policies change.
Common mistakes that leave agencies exposed
- Putting MFA only on email. The account that can publish or administer the site needs MFA at that control point too.
- Taking the public site offline instead of hiding administration. Restrict the management plane while preserving required public access.
- Assuming a security key solves defacement. Identity protection must be combined with patching, least privilege, logging, and change detection.
- Relying on local logs. If an attacker can alter the web server, local evidence may disappear; centralize and protect copies.
- Alerting on everything without ownership. Define who reviews each alert and what action follows.
- Restoring before investigating. A clean-looking page can be altered again if the compromised account, token, plugin, or management path remains active.
- Keeping unsupported software indefinitely. Isolation and monitoring reduce immediate exposure but do not replace migration.
- Publishing an uncoordinated incident statement. Technical, communications, legal, and continuity roles should agree on facts and disclosure obligations.
Why this threat deserves preparation
On January 18, 2022, CISA reported that it was responding to malicious cyber incidents in Ukraine that included government-website defacement and potentially destructive malware. That alert is historical context, not a measure of current activity or a prediction of a current threat level. It illustrates why agencies should be able to detect an unauthorized change, preserve evidence, contain the access path, communicate accurately, and restore a trusted version without improvising those responsibilities during a crisis. Read the CISA alert alongside the agency’s own jurisdiction-specific procedures.
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