computer science

Trusona

Trusona is a computer science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Trusona rather than just read about it. In short: Trusona is an American identity software company based in Scottsdale, Arizona. The company was founded in 2015 by Ori Eisen, who had previously founded the device-identification firm The 41st Parameter.

Key takeaways

Trusona belongs to computer science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Trusona to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Trusona from memory before moving on to harder problems.

Reference excerpt

Trusona is an American identity software company based in Scottsdale, Arizona. The company was founded in 2015 by Ori Eisen, who had previously founded the device-identification firm The 41st Parameter. Trusona launched an identity-verification product in 2016, later became known for passwordless authentication, and raised about US$38 million in venture funding through 2020.

History

Founding Trusona was founded in 2015 by Ori Eisen. Eisen had earlier worked as worldwide fraud director at American Express and founded The 41st Parameter, a device-identification company that Experian acquired in 2013 for US$324 million. The company came out of stealth on February 22, 2016, with an identity-verification platform developed with input from the fraud consultant Frank Abagnale, who had advised Eisen at his earlier company. The first product combined in-person identity proofing, a hardware token, and anti-replay technology intended to prevent the reuse of captured authentication data.

Funding Trusona raised an US$8 million Series A round led by Kleiner Perkins in February 2016. In June 2017 it raised US$10 million in a round led by Microsoft Ventures, with Kleiner Perkins also participating. In January 2020 the company raised a US$20 million Series C round led by Georgian Partners, with participation from Kleiner Perkins, M12, OurCrowd, and Seven Peaks Ventures, and Akamai Technologies as a strategic investor. The round brought Trusona's total funding to about US$38 million.

Passwordless authentication In May 2017 Trusona introduced passwordless sign-in for Salesforce. It later added passwordless authentication for Microsoft services and Windows 10, which the company positioned alongside revised NIST digital-identity guidance. In February 2022 Trusona joined the board of directors of the FIDO Alliance. In May 2022 it released Trusona Authentication Cloud, an app-less passwordless sign-in service based on the FIDO and WebAuthn standards.

Later direction In 2024 Trusona announced ATO Protect, a service aimed at preventing account-takeover fraud during account-recovery and IT help-desk interactions. In 2026 the company released an integration of ATO Protect with ServiceNow.

Technology Trusona's early products used anti-replay techniques to stop captured authentication data from being reused, and the company was granted a related U.S. patent in 2020. Its later authentication products implemented the FIDO2 and WebAuthn standards for passwordless sign-in.

References

Worked examples

Example 1 — a first encounter with Trusona

Start with the simplest possible case. Write down what Trusona claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In computer science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Trusona before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Trusona ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Trusona

In research: Trusona appears in computer science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Trusona in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Trusona is common in secondary-school and first-year university syllabi. It links to neighbouring topics 2015 establishments in Arizona, American companies established in 2015, Authentication methods, so understanding it makes those chapters shorter.
In everyday life: Look for Trusona outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Trusona in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Trusona means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Trusona out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Trusona in simple terms?

Why does Trusona matter?

Because it connects several computer science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Trusona?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Trusona.