What is SSO? One login for every system.
SSO (Single Sign-On) means logging in once and getting into every connected system without typing your password again. Here's how it works, and why it matters more than you'd think.
How many passwords do we type in a day?
Picture your morning at the office. You open your laptop — password. Then your email — password. Then the CRM. Then accounting. Then the file share. Before lunch you've logged into four or five different systems, each with a different password, and some asking for an SMS code on top.
The average employee logs into 9 different apps a day, requests 4-5 password resets a month, and spends 21 hours a year just dealing with passwords (Ponemon Institute, 2023). Those numbers are for large companies. At SMBs it's worse: people keep passwords in a notebook, share them over email, or just use the same password everywhere.
SSO is the architecture that answers this problem.
The core logic of SSO
In an SSO setup there's a central identity provider (like Onremo, Okta, or Azure AD). Every system trusts this provider and says "whoever you've authenticated, I'll recognize too."
Once the user logs into the central provider, every other connected system accepts them automatically. No password prompt — just an exchange of a token.
These tokens are typically valid for a few hours. When they expire, the user logs into the central provider again — but still just once.
Which protocols are used?
Three main standards sit behind SSO: OAuth 2.0, OIDC (OpenID Connect), and SAML.
OAuth 2.0 is the most widespread — every "Sign in with Google" button runs on OAuth. It was designed so third-party apps could get scoped access to user data.
OIDC is an identity layer that sits on top of OAuth. Modern SaaS products prefer it because it focuses specifically on authentication.
SAML is older but still popular in enterprise IT. It's XML-based and especially common when integrating with on-premise systems.
The five big benefits of SSO
1. User experience: One login, everything open. You never have to type a password into each system separately.
2. Security: You have one strong password instead of ten weak ones. Protect it with 2FA and your account becomes very hard to steal.
3. Less IT burden: When someone new joins, you create one account; when they leave, you deactivate one account.
4. Compliance: Standards like GDPR, SOC 2, and HIPAA require access logging. SSO centralizes that automatically.
5. Cost: A central provider plus connected apps is usually cheaper than separate licenses per employee per system.
Where does Onremo fit in?
Onremo provides SSO for every system Aigap builds. If you have an Onremo account, you can launch Booking+, Helio CRM, or any other system from the Store with a single click.
What sets Onremo apart from classic SSO products: most SSO providers are a layer. They're set up separately from the apps they sit on top of, and managed separately too. Onremo is native SSO — every system runs on the same underlying account infrastructure, and authentication is something you never have to think about.
It doesn't require any IT knowledge. Anyone who can open an account is already using SSO; they don't need to know the protocols.
When should you switch to SSO?
Signal 1: Your team is past 5 people and you're noticing password fatigue (people forgetting, complaining, reusing).
Signal 2: You're using more than 4-5 separate systems.
Signal 3: When an employee leaves, removing their access from every system takes days.
If two of these signals apply to you, it's the right time to move to SSO.
Next step
The architecture might sound complex, but with the right provider, migration is a matter of hours. To start an Onremo account and use the systems in the Aigap world, follow the first account setup guide.
And turn on two-factor authentication right away — SSO + 2FA makes an account nearly unbreakable. How to enable 2FA.