Salesforce Summer ’26 Security Changes: What You Need to Do and What You Need to Watch

Salesforce Summer ’26 continues a broader trend that has been building over the last several releases; tighter controls around identity, integrations, email security, and platform trust.

This is not a release defined by dramatic new security tooling. Instead, there is a focus on reducing reliance on older authentication methods, legacy URLs, permissive configurations, and loosely governed integrations.

For organisations that actively use and evolve their Salesforce platform, this matters. Not because Summer ’26 introduces immediate disruption for every org, but because it continues to narrow the gap between “recommended” and “required” security practice.

The good news is that most of the changes are manageable when addressed proactively. The risk tends to emerge when older integrations, inherited configurations, or forgotten identity settings have been left untouched for several years; or what C24 calls the small gaps.

 Below, we break the release into two simple categories (Salesforce summary and full release note download can be found here):

  • What you should actively review now
  • What you should monitor and plan for

Quick Summary

Salesforce Summer ’26 continues Salesforce’s broader push towards:

  • stronger identity governance
  • tighter integration security
  • verified email infrastructure
  • improved operational visibility
  • reduced reliance on legacy authentication and URLs

Most organisations will not require major remediation immediately, but environments that are not actively managed which have older integrations, legacy authentication flows, or limited governance visibility should review their setup proactively.

What You Need to Do

  1.  Review Any Integrations Still Using Legacy Salesforce URLs

One of the most important practical changes in Summer ’26 is Salesforce’s continued move away from legacy hostnames and instance-based URLs. Salesforce explicitly highlights the need to switch integrations to unique branded web addresses.

In practical terms, this means organisations should review:

  • middleware connections
  • API integrations
  • legacy apps
  • reporting tools
  • older authentication flows
  • hardcoded Salesforce URLs

Historically, many integrations were configured against instance-specific URLs such as:

na1.salesforce.com

eu11.salesforce.com

Salesforce increasingly expects organisations to use My Domain URLs instead.

For many businesses, this is a relatively straightforward remediation exercise. The challenge is usually visibility rather than complexity. Older integrations are often undocumented, business-critical, and quietly running in the background.

If your Salesforce environment has evolved over several years, this review is worth prioritising before the change becomes enforcement-led rather than advisory.

  1. Review Single Sign-On and Authentication Configuration

Identity architecture continues to tighten across the Salesforce ecosystem. Summer ’26 builds on earlier release changes around SAML, connected applications, authentication policies, and external client applications.  

This is particularly relevant for organisations using:

  • Microsoft 365 SSO
  • Okta
  • Google Workspace
  • Azure AD / Entra
  • third-party identity providers
  • mobile applications authenticating into Salesforce

Salesforce is steadily reducing tolerance for older authentication models and legacy configuration patterns.

That does not mean every organisation needs to redesign its identity estate immediately. It does mean this is no longer an area that should be treated as “set and forget.”

 At minimum, organisations should:

  • review active SSO configurations
  • identify older authentication methods still in use
  • check connected app governance
  • review MFA enforcement and exception handling
  • ensure authentication flows are still aligned to Salesforce best practice

This is especially important for organisations with multiple admins, external partners, or historical technical debt inside the org.

  1. Verify Email Domain Ownership and Email Security Settings

Email trust and sender verification continues to become more tightly enforced across Salesforce releases.

Spring ’26 introduced mandatory verification requirements for active sending domains, with clarification that this applies to system-generated emails as well.

 That work now sits alongside broader deliverability and domain trust initiatives already introduced in previous releases, including DKIM-related changes discussed in our previous article.

For organisations actively sending workflow emails, customer notifications, Experience Cloud emails, support emails, password resets, and marketing emails this is no longer optional housekeeping. At a minimum, organisations should confirm:

  • active email domains are verified
  • DKIM is correctly configured
  • SPF/DMARC posture is understood
  • deprecated sending domains are removed
  • Experience Cloud email settings are reviewed

The operational impact here is straightforward: Salesforce wants stronger proof that organisations genuinely own and control the domains they send from.

  1. Review Connected Apps and Third-Party Access

Salesforce has continued tightening governance around connected apps and external integrations over several releases. Summer ’26 reinforces that direction again.

For many organisations, connected apps accumulate quietly over time:

  • reporting connectors
  • enrichment tools
  • browser extensions
  • mobile apps
  • middleware platforms
  • AI tooling
  • sandbox utilities

Often, nobody revisits them after implementation. This release is a good prompt to review:

  • which connected apps still exist
  • who owns them
  • whether they are still required
  • what permissions they hold
  • whether OAuth scopes remain appropriate
  • whether dormant integrations should be removed

This is particularly important as more AI-enabled tools begin requesting access into Salesforce environments.

What You Need to Watch

  1. Threat Detection and Security Visibility Are Expanding

 Salesforce continues to invest heavily in native monitoring, threat visibility, and security telemetry. Summer ’25 and Summer ’26 both expanded areas including:

  • threat detection events
  • CSP violation visibility
  • suspicious login investigation
  • malware scanning
  • encryption controls
  • backup governance
  • security centre functionality  

Most SMEs do not need to operationalise every security feature immediately. However, organisations should understand that Salesforce is increasingly moving toward:

  • continuous monitoring
  • stronger event visibility
  • more opinionated platform security defaults
  • greater governance around integrations and data access

In practical terms, security posture inside Salesforce is becoming more measurable and more auditable.

  1. Malware Scanning and File Governance

Summer ’26 introduces general availability for malware scanning of Salesforce Files. This is worth monitoring if you organisation uses:

  • Experience Cloud
  • customer portals
  • file uploads
  • case attachments
  • partner collaboration

The feature reflects a wider industry expectation that collaboration platforms actively inspect uploaded content rather than simply store it.

For many organisations this will be a welcome enhancement, particularly where external users interact with the platform.

  1. Backup, Recovery, and Resilience Are Becoming More Strategic

Salesforce continues positioning resilience and recoverability as a larger operational concern rather than purely an enterprise compliance topic.

Recent releases have expanded:

  • Backup & Recover capabilities
  • cross-region continuity
  • encryption workflows
  • recovery tooling
  • security event storage

For many SMEs, this is less about immediate action and more about maturity planning.

Historically, smaller organisations often relied on the assumption that SaaS platforms inherently covered backup and disaster recovery requirements. The reality is usually more nuanced, particularly around:

  • accidental deletion
  • integration corruption
  • operational rollback
  • retention expectations
  • regulatory obligations

This is an area likely to become more commercially important over the next 12–24 months.

The Bigger Direction of Travel

The broader message from Summer ’26 is clear, Salesforce is continuing to reduce tolerance for:

  • legacy authentication
  • weak integration governance
  • unverified email infrastructure
  • permissive access patterns
  • unmanaged external connectivity

At the same time, the platform is becoming more proactive in:

  • monitoring
  • event visibility
  • identity assurance
  • recovery
  • trust enforcement

For organisations actively invested in Salesforce, this should not be viewed negatively. In most cases, these are sensible maturity improvements that align Salesforce more closely with modern security expectations.

The important point is timing.

The organisations that experience disruption are rarely the ones actively reviewing their platform. Problems usually emerge where integrations, authentication models, or security settings have quietly aged in place for years without governance or ownership.

Summer ’26 is therefore less about panic and more about visibility. Understanding what exists inside your Salesforce estate, what still needs to exist, and whether older assumptions about trust and access are still appropriate.

Need a Second Opinion on Your Salesforce Security Posture?

Many of the changes introduced across recent Salesforce releases are incremental rather than dramatic, which makes them easy to overlook until they begin affecting integrations, authentication, or operational workflows.

If you are unsure whether your organisation may be affected by:

  • legacy integration patterns
  • outdated authentication flows
  • connected app sprawl
  • email domain verification
  • evolving Salesforce security expectations

…a focused review can usually identify issues quickly before they become disruptive.

Cognition24 works with organisations to review Salesforce environments, assess operational risk, and help modernise security, identity, and integration architecture without unnecessary complexity or rework.

If you would like a pragmatic second opinion on your current setup, get in touch.

Alternatively, if you would prefer to start with a lighter-touch assessment, you can complete our free Salesforce Security Health Check questionnaire to receive an immediate operational overview of your current security posture and areas worth reviewing next.

Article FAQ

Who Is Most Affected?

These changes are most relevant for organisations that:
– operate multiple integrations or middleware platforms
– use older authentication or SSO configurations
– actively send emails from Salesforce
– maintain complex connected app environments
– have inherited legacy Salesforce configurations over several years

Does Salesforce Summer ’26 require immediate action?

Most organisations will not require emergency remediation. However, Salesforce customers should proactively review integrations, authentication methods, email domain verification, and connected app governance to avoid future operational disruption.

What are the biggest Salesforce Summer ’26 security changes?

Key areas include:
– identity and authentication governance
– legacy URL migration
– connected app oversight
– email domain verification
– malware scanning
– operational security visibility

Will older Salesforce integrations stop working?

Not immediately in most cases. However, Salesforce is continuing to reduce reliance on legacy URLs, older authentication models, and permissive trust configurations, which may affect older integrations over time.

What should organisations review first?

Most organisations should begin by reviewing:
– My Domain usage
– connected apps
– SSO configuration
– email verification settings
– external integrations
– legacy authentication flows

Is this relevant for SMEs or only enterprise Salesforce customers?

Many of these changes affect SMEs as much as enterprise organisations, particularly where integrations, third-party tools, or external authentication providers are being used.

Estimated reading time: 8 minutes

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