Explain Phishing Attacks, Then Design Anti-Phishing Education for Crypto Exchange Users

Quick Overview

A two-part product question for Coinbase: explain what phishing is and how attacks unfold, then design how the exchange should teach customers to recognize and avoid it. It tests security fundamentals, risk-based segmentation, the timing and placement of education, and measuring behavior change and losses.

Explain Phishing Attacks, Then Design Anti-Phishing Education for Crypto Exchange Users

Company: Coinbase

Role: Product Manager

Category: Product Design & Strategy

Difficulty: medium

Interview Round: Other

You are a product manager at Coinbase, a cryptocurrency exchange. The question has two parts: first explain what phishing is, then lay out how the company should teach its customers to recognize and avoid it. ### Clarifying Questions - Is the main goal fewer customer losses, fewer account takeovers reaching support, or customer trust and retention? - Which customers are in scope: people signing up, existing verified customers, or both? - Should the education cover only the exchange account, or also self-custody wallets and the company's social and community channels, where impostors often appear? - Are there limits on budget or team size, or on how much friction we can add to sign-in and withdrawals? ### Part 1 — What phishing is Explain what phishing is and how a typical attack unfolds, using examples that apply to people who hold crypto on an exchange. ```hint Think like the attacker Lay the attack out as a sequence of steps from the attacker's side. What must the victim believe, and what must the victim hand over, for the attack to pay off? ``` #### What This Part Should Cover - A precise definition that separates phishing from other attacks, such as malware or password guessing - The stages of an attack and the channels it arrives through - What makes crypto customers attractive targets and their losses hard to recover ### Part 2 — Teaching customers to resist it Design how the company should educate its customers about phishing: whom to focus on, what they need to learn, where and when the education reaches them, and how you would know it reduces harm. ```hint Picture the moment of the mistake Think about what a customer is doing at the moment they are fooled. Would a lesson they saw weeks earlier come to mind then? ``` #### What This Part Should Cover - A segmentation of customers by risk and experience, with a justified focus - The specific moments when customers are attacked, such as sign-in, withdrawals, wallet connections and contact with support - Education formats and placement, weighed against friction for legitimate use - Metrics that capture behavior change and losses, not content views ### What a Strong Answer Covers - Security mechanics in Part 1 that are correct and that shape the plan in Part 2 - How education works alongside product safeguards - A prioritized plan with explicit trade-offs between safety and friction - Measurement of an outcome that is rare, delayed and under-reported - Risks such as warning fatigue and attackers imitating the company's own messages ### Follow-up Questions - Attackers start sending emails that copy the look of your education campaign. How do you respond? - A customer loses funds after approving a malicious wallet signature on a site the company does not run. What is the company's responsibility, and what would you change? - How would you show that the education program, rather than other changes, reduced phishing losses?

Overview: A two-part product question for Coinbase: explain what phishing is and how attacks unfold, then design how the exchange should teach customers to recognize and avoid it. It tests security fundamentals, risk-based segmentation, the timing and placement of education, and measuring behavior change and losses.

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Coinbase
Sep 5, 2024
mediumProduct ManagerOtherProduct Design & Strategy
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You are a product manager at Coinbase, a cryptocurrency exchange. The question has two parts: first explain what phishing is, then lay out how the company should teach its customers to recognize and avoid it.

Clarifying Questions Guidance

  • Is the main goal fewer customer losses, fewer account takeovers reaching support, or customer trust and retention?
  • Which customers are in scope: people signing up, existing verified customers, or both?
  • Should the education cover only the exchange account, or also self-custody wallets and the company's social and community channels, where impostors often appear?
  • Are there limits on budget or team size, or on how much friction we can add to sign-in and withdrawals?

Part 1 — What phishing is

Explain what phishing is and how a typical attack unfolds, using examples that apply to people who hold crypto on an exchange.

What This Part Should Cover Guidance

  • A precise definition that separates phishing from other attacks, such as malware or password guessing
  • The stages of an attack and the channels it arrives through
  • What makes crypto customers attractive targets and their losses hard to recover

Part 2 — Teaching customers to resist it

Design how the company should educate its customers about phishing: whom to focus on, what they need to learn, where and when the education reaches them, and how you would know it reduces harm.

What This Part Should Cover Guidance

  • A segmentation of customers by risk and experience, with a justified focus
  • The specific moments when customers are attacked, such as sign-in, withdrawals, wallet connections and contact with support
  • Education formats and placement, weighed against friction for legitimate use
  • Metrics that capture behavior change and losses, not content views

What a Strong Answer Covers Guidance

  • Security mechanics in Part 1 that are correct and that shape the plan in Part 2
  • How education works alongside product safeguards
  • A prioritized plan with explicit trade-offs between safety and friction
  • Measurement of an outcome that is rare, delayed and under-reported
  • Risks such as warning fatigue and attackers imitating the company's own messages

Follow-up Questions Guidance

  • Attackers start sending emails that copy the look of your education campaign. How do you respond?
  • A customer loses funds after approving a malicious wallet signature on a site the company does not run. What is the company's responsibility, and what would you change?
  • How would you show that the education program, rather than other changes, reduced phishing losses?