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computer science

LastPass

LastPass 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 LastPass rather than just read about it. In short: LastPass is a password manager application. The standard version of LastPass comes with a web interface, but also includes a browser extension, an app and support for bookmarklets.

Key takeaways

  • LastPass 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 LastPass to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of LastPass from memory before moving on to harder problems.

Reference excerpt

LastPass is a password manager application. The standard version of LastPass comes with a web interface, but also includes a browser extension, an app and support for bookmarklets. Founded in 2008 by four developers, Lastpass was acquired by GoTo (formerly LogMeIn Inc.) for $110 million in 2015. LastPass was spun-off from GoTo into a stand-alone business in 2024. LastPass is known for suffering significant security incidents between 2011 and 2022. Notably, in late 2022, user data, billing information, and vaults (with some fields encrypted and others not) were breached, leading many security professionals to call for users to change all their passwords and switch to other password managers.

Overview A user's content in LastPass, including passwords and secure notes, is protected by one master password. The content is synchronized to any device the user uses the LastPass software or app extensions on. Information is encrypted with AES-256 encryption with PBKDF2 SHA-256, salted hashes, and the ability to increase password iterations value. Encryption and decryption take place at the device level. LastPass has a form filler that automates password entering and form filling, and it supports password generation, site sharing and site logging, and two-factor authentication. LastPass supports two-factor authentication via various methods including the LastPass Authenticator app for mobile phones as well as others including YubiKey. Unlike some other major password managers, LastPass offers a user-set password hint, allowing access when the master password is missing.

History On December 2, 2010, it was announced that LastPass had acquired Xmarks, a web browser extension that enabled password synchronization between browsers. The acquisition meant the survival of Xmarks, which had financial troubles, and although the two services remained separate, the acquisition led to a reduced price for paid premium subscriptions combining the two services. On March 30, 2018, the Xmarks service was announced to be shut down on May 1, 2018, according to an email to LastPass users. On October 9, 2015, GoTo acquired LastPass for $110 million. The company was combined under the LastPass brand with a similar product, Meldium, which had already been acquired by GoTo. On March 16, 2016, LastPass released LastPass Authenticator, a free two-factor authentication app. On November 2, 2016, LastPass announced that free accounts would now support synchronizing user content to any device, a feature previously exclusive to paid accounts. Earlier, a free account on the service meant it would sync content to only one app. In August 2017, LastPass announced LastPass Families, a family plan for sharing passwords, bank account info, and other sensitive data among family members for a $48 annual subscription. They also doubled the price of the Premium version without adding any new features to it. Instead, some features of the free version were removed. On December 14, 2021, GoTo announced that LastPass would be established as an independent company. The spin-off was completed in May 2024, with LastPass being directly controlled by Francisco Partners and Elliott Investment Management, the private equity firms that took GoTo private in 2020.

Reception In March 2009, PC Magazine awarded LastPass five stars, an "Excellent" mark, and their "Editors' Choice" for password management. A new review in 2016 following the release of LastPass 4.0 earned the service again five stars, an "Outstanding" mark, and "Editors' Choice" honor. In July 2010, LastPass's security model was extensively covered and approved of by Steve Gibson in his Security Now podcast episode 256. He also revisited the subject and how it relates to the National Security Agency in Security Now podcast episode 421. In October 2015 when GoTo acquired LastPass, founder Joe Siegrist's blog was filled with user comments voicing criticism of GoTo. Web sites ZDNet, Forbes and Infoworld posted articles mentioning the outcry by existing customers, some of whom said they would refuse to do business with GoTo, and raised other concerns about GoTo's reputation. In a 2017 Consumer Reports article commented LastPass a popular password manager (alongside Dashlane, KeePass, and 1Password), with the choice between them mostly down to personal preference. In March 2019, Lastpass was awarded the Best Product in Identity Management award during the seventh annual Cyber Defense Magazine InfoSec Awards. In 2017, Stiftung Warentest evaluated nine paid password managers and rated LastPass Premium as one of four recommended products. The test was later updated to include the 2022 LastPass breach.

Security incidents LastPass has faced ongoing scrutiny regarding its security practices and incident response over the years. Several independent analyses and reported breaches have raised concerns about how the company handles user data, mitigates vulnerabilities, and communicates risks to its customers. While LastPass employs industry-standard encryption to protect stored credentials, past security incidents and research findings have prompted debate over the platform’s overall reliability and its approach to safeguarding sensitive information.

2011 security incident In May 2011, LastPass reported detecting unusual network activity that indicated a possible intrusion into its servers. Although the company stated that no evidence of data exfiltration was found, it required all users to reset their master passwords as a precaution. According to LastPass, encrypted user vault data was not compromised.

2015 security breach In June 2015, the LastPass team discovered and halted suspicious activity on their network. Their investigation revealed that LastPass account email addresses, password reminders, server per user salts, and authentication hashes were compromised; however, encrypted user vault data was not affected.

2017 security vulnerabilities in the Android app A 2017 analysis by the Fraunhofer-Institut für Sichere Informationstechnologie (SIT) identified several security flaws in multiple Android password managers, including LastPass. The issues, which include improperly stored master passwords and Data leakage, were reported to the developers and subsequently fixed.

2021 third-party trackers and security incident In 2021, it was discovered that the Android app contained third-party trackers. At the end of 2021, LastPass warned users that their master passwords were compromised.

… excerpt ends here. Continue reading the full article.

Worked examples

Example 1 — a first encounter with LastPass

Start with the simplest possible case. Write down what LastPass 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 LastPass 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 LastPass 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 LastPass

In research
LastPass 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 LastPass 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
LastPass is common in secondary-school and first-year university syllabi. It links to neighbouring topics 2008 software, 2015 mergers and acquisitions, Corporate spin-offs, so understanding it makes those chapters shorter.
In everyday life
Look for LastPass 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 LastPass in 20 minutes

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

Frequently asked questions

What is LastPass in simple terms?

LastPass is a password manager application. The standard version of LastPass comes with a web interface, but also includes a browser extension, an app and support for bookmarklets.

Why does LastPass 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 LastPass?

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 LastPass.

Tags

  • 2008 software
  • 2015 mergers and acquisitions
  • Corporate spin-offs
  • Cryptographic software
  • Google Chrome extensions
  • Internet Explorer add-ons
  • Microsoft Edge extensions
  • Nonfree Firefox WebExtensions
  • Password managers
  • Private equity portfolio companies

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