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Enterprise cybersecurity, cloud security and compliance

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Retail and e-commerce

Protect every checkout, account and order.

ThreatGaurd helps retailers, online stores and marketplaces secure their checkout, customer accounts and payment pages, prepare for peak sales and meet PCI DSS and privacy requirements, without slowing down sales.

Why it matters

In retail, trust is won or lost at checkout.

Online stores handle payments, personal data and loyalty balances for thousands or millions of customers. A single skimming script or a wave of account takeovers can quickly turn into fraud losses, chargebacks and lost customers.

Retail also moves fast. New campaigns, plugins, marketplaces and delivery partners go live every week, often just before the busiest days of the year.

  • Peak traffic, peak attacks

    Big sales bring record traffic, and attackers time their campaigns to match.

  • Third-party code everywhere

    Plugins, tags, chat widgets and payment scripts all run inside your checkout.

  • Stores and online, connected

    Point-of-sale, store Wi-Fi and fulfilment systems all link back to the same core.

Anatomy of a checkout

Five places attackers target in every online store.

Most attacks on retailers aim at the same few points between a customer’s cart and your order system. We test each of them, the way an attacker would.

Illustration of a typical checkout. Numbers match the list.

  1. Target 1: Customer accounts

    Attackers: credential stuffing and account takeover using passwords leaked from other sites.

    We test: login, MFA, password reset, session handling and rate limiting.

    Penetration testing
  2. Target 2: Promotions and pricing

    Attackers: coupon stacking, price and quantity tampering, and gift card or loyalty abuse.

    We test: business logic in carts, discounts, refunds and loyalty points.

    Web & API testing
  3. Target 3: Payment page scripts

    Attackers: skimming code added through compromised or third-party scripts to steal card details.

    We test: which scripts run on payment pages, how they are approved and how changes would be detected.

    Web & API testing
  4. Target 4: Stores and warehouses

    Attackers: moving from store Wi-Fi or point-of-sale networks into core systems.

    We test: segmentation between stores, payment systems, warehouses and head office.

    Network assessment
  5. Target 5: Orders and customer data

    Attackers: reading other customers’ orders and addresses, or finding exposed cloud storage.

    We test: order APIs, access controls and the cloud storage behind them.

    Cloud posture assessment

Peak season readiness

Ready before your biggest sale, not during it.

Festive sales, Black Friday and big campaigns bring record traffic, and record attention from attackers. We work back from your sale date.

  1. Step 1: 8 weeks before

    Test new features, checkout changes and campaign pages.

    What you get

    Prioritised findings for your developers

  2. Step 2: 6 weeks before

    Fix the critical issues and verify every fix.

    What you get

    Retest results for your leadership

  3. Step 3: 3 weeks before

    Review admin access, plugins and payment page scripts.

    What you get

    Fewer ways in during the sale

  4. Step 4: Sale week

    Freeze risky changes and confirm recovery plans and contacts.

    What you get

    A store ready for peak trading

Why ThreatGaurd

Testing that never gets in the way of selling.

  • Planned around your calendar

    No intrusive testing during sales, launches or peak trading, unless you ask for it.

  • No real orders or payments

    Test accounts, test cards and staging stores wherever possible.

  • Findings developers can fix fast

    Clear steps to reproduce and fix, prioritised by fraud and data risk.

  • Evidence for PCI DSS

    Reports structured to support your PCI DSS assessment or self-assessment.

Agreed before we test your store

  • Testing windows away from sales and launches
  • Test cards and accounts, never real payments
  • No real orders placed or fulfilled
  • Named contacts and an escalation path

Nothing is tested until scope, timing and contacts are confirmed in writing.

How we handle your data

Standards and regulations

Aligned to card and privacy rules.

Retailers answer to card brands, payment providers and privacy regulators. We map our work to the requirements that apply to you.

  • Payments

    Card data security

    • PCI DSS v4.0.1
    • Payment page script controls (6.4.3 and 11.6.1)
    • Self-assessment questionnaires A, A-EP and D
  • Customer data

    Privacy laws

    • India DPDP Act, 2023
    • EU and UK GDPR
    • California CCPA and CPRA
  • Security standards

    Security frameworks

    • ISO/IEC 27001:2022
    • OWASP Top 10 (2025)
    • CIS Controls v8

ThreatGaurd provides security testing, readiness and advisory services. PCI DSS compliance is validated by a Qualified Security Assessor or through your self-assessment, and legal interpretation should be confirmed by your legal counsel.

FAQ

Questions retail and e-commerce leaders ask us

Can’t find your answer? Our team is happy to help.

Do you help with PCI DSS requirements 6.4.3 and 11.6.1?

Yes. We review which scripts run on your payment pages, how they are approved and how changes or tampering would be detected, and we test those pages for weaknesses. Your Qualified Security Assessor or self-assessment decides compliance.

We use a hosted payment page. Are we still at risk?

Usually less, but not zero. Scripts on the pages that link to or embed the payment page can still be abused. Since March 2025, merchants using SAQ A must also confirm their site is not susceptible to attacks from scripts that could affect their e-commerce systems.

Can you test our store before a big sale?

Yes. We work back from your sale date: testing new features and checkout changes first, then retesting fixes and reviewing admin access and scripts before your change freeze.

Will testing create real orders or charges?

No. We use test accounts, test cards and staging environments wherever possible, and agree in advance how any production testing is handled, so no real orders are placed or fulfilled.

Do you test stores built on hosted platforms?

Yes. We test your storefront, custom code, plugins, integrations and admin access. On hosted platforms, testing stays within what the platform provider allows.

Do you cover physical stores and warehouses too?

Yes. We assess the networks that connect stores, point-of-sale systems, warehouses and head office, and check that payment systems are properly separated from everything else.

Get started

Talk to us before your next big sale.

Tell us about your store, your platform and your sales calendar. We will recommend a practical plan that protects customers without slowing down sales, with no obligation.

What happens next

  1. A short scoping callWe learn about your store, platform and sale dates.
  2. A fixed-scope proposalClear scope, timing and cost, planned around your calendar.
  3. Testing in agreed windowsWork runs outside sales and launches, with regular updates.