Am I responsible if a website I built gets hacked?

It depends — and this is exactly why cyber liability and E&O insurance are both essential for developers. You may be responsible if: you built a site with known security vulnerabilities (SQL injection, XSS, insecure authentication), you implemented a plugin or library with documented security flaws that you should have known about, you had maintenance responsibility for the site and failed to apply security patches, or you stored client credentials, API keys, or database passwords insecurely. You may not be responsible if: the breach was caused by a completely novel attack vector, the client modified the site after delivery without your involvement, or the breach exploited a platform vulnerability (WordPress core, hosting provider) beyond your control. The problem: even when you are not responsible, you may still be sued. Legal defense costs — just to respond to the claim, conduct discovery, and demonstrate non-liability — can run $15,000–$50,000 before a case is resolved. Cyber liability and E&O insurance cover these defense costs regardless of ultimate outcome.

Should I use a contract to avoid liability, or do I need insurance too?

Both — contracts and insurance serve different purposes and you need both working together. What a good development contract does: defines scope (what is and is not included), establishes deliverables and acceptance criteria, limits your liability (liability cap clauses, consequential damages exclusions), establishes dispute resolution procedures, and protects your IP and payment rights. What a contract cannot do: prevent a client from suing you (they can file regardless of the contract), guarantee a court will enforce your liability cap, eliminate your legal defense costs when a client files a claim, or cover security breaches that are not the client's fault. What E&O + cyber insurance does: covers your legal defense costs when clients sue (even groundless suits), pays settlements within policy limits, provides experienced defense counsel who handles these cases regularly. Contracts limit your liability exposure ceiling. Insurance funds the cost of reaching that ceiling. You need both.

Do web developers need workers' comp insurance?

If you have employees: yes — workers' comp is mandatory in most states for any employer with one or more employees, and the threshold for compliance is lower than most developers realize. If you are solo: depends on your state. Most states exempt sole proprietors from mandatory WC for themselves, but some require it even for self-employed individuals in tech services. If you use subcontractors: this is where developers frequently get exposed. If your subcontractors are later classified as employees — either by the IRS, your state labor board, or following an injury — you may face retroactive WC liability. Protect yourself: review subcontractor classification annually, ensure subcontractors have their own business insurance (certificate of insurance on file), and consult a business attorney in your state about contractor classification compliance. Development agencies that use 1099 contractors should absolutely speak with a local insurance agent about WC exposure — classification audits are increasingly common.

How much does web developer business insurance cost per month?

Solo web developer (GL + E&O, $250K E&O limits): $30–$60/month. Add cyber liability ($100K limits): $50–$85/month total. Full package (GL + E&O + cyber, good limits): $65–$110/month. Development agency (3–5 employees, $500K E&O + WC + GL + cyber): $400–$800/month. Enterprise contracts often require higher limits — $1M E&O + $1M cyber: $90–$160/month for solo developers. Pricing factors: annual revenue (biggest factor), the types of clients you work with (enterprise, healthcare, and e-commerce clients drive higher rates), whether you carry site maintenance responsibilities, and your claims history. Next Insurance, Hiscox, and Embroker all offer developer-specific professional liability packages. Embroker is particularly strong for tech professionals and offers higher limits. Get 2–3 quotes — tech E&O pricing varies significantly between carriers.

Am I responsible if a website I built gets hacked?

It depends — and this is exactly why cyber liability and E&O insurance are both essential for developers. You may be responsible if: you built a site with known security vulnerabilities (SQL injection, XSS, insecure authentication), you implemented a plugin or library with documented security flaws that you should have known about, you had maintenance responsibility for the site and failed to apply security patches, or you stored client credentials, API keys, or database passwords insecurely. You may not be responsible if: the breach was caused by a completely novel attack vector, the client modified the site after delivery without your involvement, or the breach exploited a platform vulnerability (WordPress core, hosting provider) beyond your control. The problem: even when you are not responsible, you may still be sued. Legal defense costs — just to respond to the claim, conduct discovery, and demonstrate non-liability — can run $15,000–$50,000 before a case is resolved. Cyber liability and E&O insurance cover these defense costs regardless of ultimate outcome.

Should I use a contract to avoid liability, or do I need insurance too?

Both — contracts and insurance serve different purposes and you need both working together. What a good development contract does: defines scope (what is and is not included), establishes deliverables and acceptance criteria, limits your liability (liability cap clauses, consequential damages exclusions), establishes dispute resolution procedures, and protects your IP and payment rights. What a contract cannot do: prevent a client from suing you (they can file regardless of the contract), guarantee a court will enforce your liability cap, eliminate your legal defense costs when a client files a claim, or cover security breaches that are not the client's fault. What E&O + cyber insurance does: covers your legal defense costs when clients sue (even groundless suits), pays settlements within policy limits, provides experienced defense counsel who handles these cases regularly. Contracts limit your liability exposure ceiling. Insurance funds the cost of reaching that ceiling. You need both.

Do web developers need workers' comp insurance?

If you have employees: yes — workers' comp is mandatory in most states for any employer with one or more employees, and the threshold for compliance is lower than most developers realize. If you are solo: depends on your state. Most states exempt sole proprietors from mandatory WC for themselves, but some require it even for self-employed individuals in tech services. If you use subcontractors: this is where developers frequently get exposed. If your subcontractors are later classified as employees — either by the IRS, your state labor board, or following an injury — you may face retroactive WC liability. Protect yourself: review subcontractor classification annually, ensure subcontractors have their own business insurance (certificate of insurance on file), and consult a business attorney in your state about contractor classification compliance. Development agencies that use 1099 contractors should absolutely speak with a local insurance agent about WC exposure — classification audits are increasingly common.

How much does web developer business insurance cost per month?

Solo web developer (GL + E&O, $250K E&O limits): $30–$60/month. Add cyber liability ($100K limits): $50–$85/month total. Full package (GL + E&O + cyber, good limits): $65–$110/month. Development agency (3–5 employees, $500K E&O + WC + GL + cyber): $400–$800/month. Enterprise contracts often require higher limits — $1M E&O + $1M cyber: $90–$160/month for solo developers. Pricing factors: annual revenue (biggest factor), the types of clients you work with (enterprise, healthcare, and e-commerce clients drive higher rates), whether you carry site maintenance responsibilities, and your claims history. Next Insurance, Hiscox, and Embroker all offer developer-specific professional liability packages. Embroker is particularly strong for tech professionals and offers higher limits. Get 2–3 quotes — tech E&O pricing varies significantly between carriers.

Technology & Professional Services

Business Insurance for Web Developers & Web Designers

A site that goes down on launch day, a security vulnerability that exposes client data, or a client claiming your code caused lost revenue — web developers face significant professional liability on every project.

$30–$100/ monthSolo web developer (E&O + GL, $250K E&O limits): $30–$60/month. Add cyber liability: $50–$90/month total. Full package for client-facing developers: $60–$110/month. Development agencies with employees should add WC and increase E&O limits to $500K–$1M for enterprise client contracts.

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Coverage Types for Web Developers & Web Designers

These are the key insurance policies most relevant to your business type — ranked by importance.

📋

Professional Liability (E&O)

Required

Covers claims that your development work caused financial harm — a site that failed to launch properly, an e-commerce feature that lost orders, an API integration that crashed a client's workflow, or code errors that required expensive debugging and remediation. The core coverage for all web development professionals.

💻

Cyber Liability

Required

Web developers build and maintain systems that handle client data, payment information, and user accounts. A security vulnerability you introduced, a plugin you left unpatched, or a database that gets breached while under your maintenance can trigger significant client claims. Cyber liability covers breach response and your legal defense.

🛡️

General Liability

Recommended

Covers bodily injury and property damage when you work on-site at client offices or meet clients at your studio. Many client contracts require GL as a condition of engagement — having a certificate of insurance on file closes contracts faster.

🖥️

Business Property / Equipment

Recommended

Covers your development hardware (MacBook, external monitors, storage, peripherals) if stolen or damaged. A stolen laptop with client access credentials and active project files creates both financial and liability exposure that equipment coverage addresses.

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What You Need to Know

→Site launch failures are the most common web development E&O claim — a site that goes live and immediately has broken functionality, lost data from migration, or e-commerce failures on launch day can generate claims equal to or greater than your project fee.
→Maintenance retainers create ongoing liability — if you are on retainer for site maintenance and a vulnerability is exploited on a site you are responsible for maintaining, you may face claims for the breach consequences.
→Scope creep disputes generate E&O claims — clients who believe they contracted for more than what was delivered are a leading source of developer disputes. Clear scope documentation reduces but does not eliminate this exposure.
→Third-party plugin and library vulnerabilities are increasingly a developer liability — courts and clients are beginning to hold developers responsible for failing to disclose known vulnerabilities in components they chose to implement.
→Many client contracts (particularly enterprise, SaaS, and e-commerce clients) require $1M E&O and $1M cyber liability as a condition of signing — having this coverage at the right limits determines whether you win the contract.

What Does It Cost?

$30–$100per month

Solo web developer (E&O + GL, $250K E&O limits): $30–$60/month. Add cyber liability: $50–$90/month total. Full package for client-facing developers: $60–$110/month. Development agencies with employees should add WC and increase E&O limits to $500K–$1M for enterprise client contracts.

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Frequently Asked Questions

Web developers face significant professional liability across the project lifecycle: Pre-launch: scope disputes, timeline delays, feature gaps (client claims delivered scope differs from contracted scope). Launch: site failure on go-live (the highest-risk moment of any web project), data migration errors (corrupted, lost, or incorrectly migrated data), e-commerce failures (checkout not working, payment integration broken, orders not processing). Post-launch: performance issues (slow load times causing lost conversions, SEO damage from technical errors), security vulnerabilities introduced during development that result in breaches, API integration failures causing downstream system problems. Ongoing maintenance: security patch failures leading to exploits, plugin/theme conflicts causing site outages, database corruption during updates. Each of these scenarios can generate client claims for lost revenue, remediation costs, and consequential damages that exceed your original project fee. E&O insurance covers legal defense and settlements for all of these risk categories.

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