What is IGA?Identity Governance & Administration explained
Answers the audit question 'who has access to what, and why' — running periodic reviews of every employee's permissions, modeling access by role, and proving to auditors that unneeded access gets removed.
By Cyber Tool Stack Editorial TeamReviewed
Verified Sources: ibm.com, paloaltonetworks.com, beyondtrust.com
The lesson
Proving nobody kept keys they shouldn't have
Access only ever piles up: every project, role change, and 'just for now' grant adds another door someone can open. Learn how companies find, prune, and prove control over all of that access.
If it helps, think of it as… the key cabinet audit
Over the years, employees collect office keys — a closet for an old project, a lab from a former role — and nobody ever asks for them back. An access review is the day building management lays every key on the table and asks each door's owner: does this person still need this? Keys nobody can justify get melted down.
Joiner
day-one access granted from the role
Mover
new role: add what's needed, drop the rest
Review
owners certify each grant is still needed
Leaver
every account disabled at once
…then the loop starts again — this runs continuously, not once.
What it does
Identity Governance and Administration (IGA) answers the question every auditor asks and few companies can answer quickly: who has access to what, and why? It keeps an inventory of every account and permission across a company's systems, grants and removes access automatically as people join, change roles, and leave, runs periodic reviews where managers confirm each grant is still needed, and produces the evidence proving all of this actually happened.
If single sign-on is the front door, IGA is the ledger of who was issued which keys — and the process for taking them back.
The problem it solves
Access only ever accumulates. An employee five years into their tenure carries permissions from three roles ago: the finance folder from a stint covering for a colleague, the admin rights from a long-finished project. Nobody remembers to remove any of it. Security people call this privilege creep, and its ugliest form is the orphaned account — a login belonging to someone who left the company, still active, with nobody watching it.
Both are gifts to attackers: every stale permission widens what one stolen account can reach, and an orphaned account is a door with no owner. They are also audit failures — frameworks like SOC 2 demand proof that access is reviewed and removed. And some combinations are dangerous all by themselves: the person who can create a vendor in the payment system shouldn't also be able to approve payments to one. IGA exists to find, prune, and prevent all of this systematically.
How it works, step by step
- Connect: the system syncs with the HR directory and every business app, building one inventory of accounts and entitlements.
- Model roles: permissions are bundled — "accountant" means these five systems at these levels — so access is granted consistently instead of copied from whoever sat in the chair last.
- Automate the lifecycle: a joiner gets their role's bundle on day one; a mover's access is swapped, not stacked, keeping each person at least privilege — only what the current job needs; a leaver's accounts are disabled everywhere within minutes of HR recording the exit.
- Certify: on a schedule, managers and app owners review each grant and confirm or revoke it, with an audit trail of every decision.
- Enforce rules: dangerous permission combinations are flagged or blocked before they are ever granted.
- Report: audit-ready evidence is generated continuously instead of being assembled by hand in a panic each year.
What it doesn't do
IGA doesn't authenticate anyone — it decides what access should exist, while the login system enforces it in the moment. It also doesn't vault or rotate powerful admin credentials; that is a separate discipline with its own tooling.
And it is only as honest as its reviews. When a manager facing four hundred line items clicks "approve all," the review becomes theater. The beginner misconception is that IGA is compliance paperwork with no security value: in reality, every unneeded permission it removes shrinks what the next stolen account can reach.
How it fits the stack
IGA decides; identity and single sign-on enforces those decisions at every login. The most dangerous entitlements — admin and service accounts — get vaulted and monitored by privileged access management. And the review evidence IGA produces flows straight into GRC and compliance, where auditors consume it.
Terms you just met
Each links to its plain-language definition in the glossary.
The field guide
Evaluating this category
A second pass for buyers: market context, distinctions that matter, and what to weigh when tools in this category start looking alike.
An auditor's most basic question about security is deceptively hard to answer: who currently has access to what, and can you prove it's supposed to be that way? Over time, employees change roles, get temporary project access that's never revoked, or accumulate permissions nobody remembers granting — and without a system built to track it, "review everyone's access" turns into a spreadsheet fire drill every audit cycle.
The tool built for this runs that review on a schedule automatically, models access as roles instead of one-off grants, and produces the audit-ready evidence a compliance team needs — turning "who has access to what, and why" from a scramble into a standing, provable answer.
The problem it solves
Access tends to only grow: an employee who moves teams often keeps old permissions along with new ones, a contractor's access outlives the project, and nobody cleans it up because nobody is tasked with doing so. Multiply this across thousands of employees and dozens of systems, and the honest answer to "who can access the finance database" becomes genuinely unknown — a real risk if misused, and a real problem when an auditor asks for evidence of review.
Manually reviewing this on a spreadsheet doesn't scale — someone has to chase down every manager, get them to look, and trust them to catch a permission that shouldn't be there.
How it works
The system first pulls in a full picture of who has access to what across connected applications, then groups entitlements into roles so access can be reasoned about at the level of "sales rep" instead of hundreds of individual flags. On a recurring schedule, it runs a certification campaign: each manager gets a list of their team's current access and has to explicitly approve or revoke each item, rather than access persisting silently by default.
It also automates the lifecycle side: as someone joins, changes role, or leaves, provisioning and deprovisioning happen automatically instead of via ticket, and it can flag dangerous combinations — like one person able to both request and approve their own payments — before they're granted. Every review and change gets logged, producing the audit trail a reviewer needs.
IAM/SSO vs IGA
Everyday identity and access management is about the moment-to-moment mechanics of logging in — authenticating a user and handing them off into apps they're already approved for. Identity governance sits a layer above that and asks a slower question: should this person have this access at all, and can that be proven later? One handles real-time authentication; the other handles the ongoing, auditable judgment call about appropriateness.
In practice, they connect directly: the governance layer often triggers the grant or revocation, which the identity platform carries out. A company can run a functional SSO setup with no governance layer at all — it just won't be able to prove, later, that anyone's access was ever reviewed.
Choosing one
The main driver is usually compliance pressure — audits that require evidence of periodic access review push this from "nice to have" to "mandatory" faster than security risk alone does. Organizations feeling that pressure for the first time should weigh how much certification and role-modeling work the tool automates versus how much needs manual configuration, since a tool that just digitizes a spreadsheet review doesn't save much real effort.
It's also worth checking how well the tool connects to the mix of applications in use, especially complex systems like enterprise resource planning software — a governance platform is only as good as its visibility into entitlements actually granted in each connected system.
Capability taxonomy
What buyers typically evaluate when comparing tools in this category.
- Access certification campaigns
- Runs periodic manager or owner review of who has access to what.
- Role-based access modeling
- Groups entitlements into roles so access can be granted and reviewed at scale.
- Automated provisioning & deprovisioning
- Grants and removes system access automatically based on identity lifecycle events.
- Segregation-of-duties enforcement
- Flags or blocks toxic combinations of access that violate internal controls.
- Access request workflows
- Lets employees request access with approval routing and audit trail.
- Compliance reporting
- Produces audit-ready evidence of access reviews and policy enforcement.
Tools in this category
Now that you know what IGA does, see who does it.
3 tools