India-built AI & blockchain engineering since 2017 · Serving clients worldwide

Product & Platforms

Wallet & Payment Safety

Wallet and payment safety is the set of design choices that stop money, keys and customer data from being stolen or misused. Speqto applies layered security to fintech and crypto products, for founders and CTOs who must satisfy partners, auditors and users before they handle real funds.

  • Prototype in weeksProof before big budgets
  • Weekly demosSee progress, not slides
  • You own the codeFull IP assignment
  • 128+ engineersFive offices, three continents

Keys, custody and the biggest risks

In crypto wallets, everything depends on private keys. Options include user-held keys, multi-party computation, hardware security modules, and custodial setups with cold storage. Each trades convenience, recoverability and liability differently. Seed phrase handling, backup flows and social recovery need careful design, because user error is a major cause of loss. Biometric authentication on mobile devices can protect key use, but it should unlock a protected key rather than replace the underlying cryptography.

In card and bank payments, the aim is to keep sensitive data out of your systems. Using tokenization from a payment provider limits PCI DSS scope, while strong customer authentication under PSD2 or 3-D Secure shifts risk and satisfies regulation in Europe. We steer teams away from storing card numbers wherever a provider can do so. Recovery is a security feature too: weak recovery routes such as email-only resets are a frequent point of account takeover.

Application security that attackers actually test

Typical attacks are not exotic: stolen credentials, SIM swaps, injection, insecure direct object references, leaked API keys and compromised dependencies. We counter them with multi-factor authentication, device binding, rate limiting, parameterised queries, strict authorization checks on every object, secret rotation and software composition scanning. Smart contract wallets and account abstraction add programmable limits and recovery options, with new code that must itself be audited.

Transaction integrity needs extra care: idempotency keys to prevent double-spends from retries, signed requests, withdrawal whitelists, cooling-off periods for new addresses, and limits that adapt to risk. Sensitive actions require step-up authentication and produce tamper-evident audit logs. Logging records who did what and when without storing secrets, and logs are shipped to a separate, access-controlled store. Alerts fire on unusual access.

Detection, testing and ongoing assurance

Prevention is never complete, so we add monitoring. Rules and machine-learning models score transactions for velocity, geography, device and behavior anomalies, routing suspicious ones to review. AI helps spot patterns across accounts, but explainable rules remain important for compliance and for explaining decisions to customers. Third-party risks include SDKs, analytics tags and cloud services, so we review what each one can see and restrict it.

Before launch we recommend threat modeling, code review, penetration testing and, for smart contracts, independent audits. Afterward come dependency updates, incident runbooks and periodic re-testing. Security is a process, not a certificate, and we do not claim any product is unhackable. Regulatory requirements depend on your license and market. Staff access is limited with just-in-time permissions and approvals, since insiders and compromised admin accounts are real threats.

What we do

What our Wallet & Payment Safety team delivers

Specific work we do for clients, with the senior people who do it.

  • Wallet key management design

    Choosing and implementing custody models with HSMs, MPC or secure enclaves, including backup and recovery flows. Includes recovery design.

  • Payment security architecture

    Tokenization, SCA and 3-D Secure integration designed to minimize PCI DSS scope and protect customer data. Reduces audit scope.

  • Fraud and risk monitoring

    Transaction scoring, velocity limits, device signals and review queues that catch suspicious activity without blocking good customers. Tuned to reduce false alarms.

  • Secure development lifecycle

    Threat modeling, code review, dependency scanning and secrets management embedded in your delivery pipeline. Aligned with OWASP guidance.

  • Penetration testing coordination

    Scoping and managing independent tests of apps, APIs and infrastructure, then fixing and verifying findings. Findings are tracked to closure.

  • Incident readiness

    Runbooks, logging, alerting and rehearsed response plans so teams act quickly and orderly when something goes wrong. Includes communication plans.

Why Speqto

A team you can rely on from the first call

The habits that keep projects calm: clear scope, visible progress and engineers who stay accountable.

  • Building since 2017

    Nine years of shipping web, mobile, AI and blockchain products for startups and enterprises.

  • 128+ engineers

    A bench of senior engineers, designers and QA, so one person leaving never stalls your product.

  • Offices on three continents

    Noida HQ with teams in Surat, London, the US and Ho Chi Minh City for overlapping working hours.

  • AI-first workflow

    AI-assisted coding, testing and reviews speed delivery, with a named human accountable for every merge.

  • Weekly demos

    You see working software every week and can redirect early, long before a release surprise.

  • You own everything

    Full IP assignment, repository access from day one and an NDA before we talk details.

How we deliver

A proven process from idea to scale

Transparent, agile delivery with weekly demos and clear milestones, so you always know what is shipping and why.

  1. 01

    Discover

    Workshops to understand goals, users, data and success metrics.

  2. 02

    Plan

    Architecture, roadmap, estimate and a team shaped to your needs.

  3. 03

    Design

    UX flows, prototypes and technical design validated with stakeholders.

  4. 04

    Build

    Agile sprints with weekly demos, code reviews and automated testing.

  5. 05

    Launch

    Secure deployment, monitoring and a smooth go-live.

  6. 06

    Scale

    Ongoing optimization, new features and support as you grow.

Technology

Tools and platforms for Wallet & Payment Safety

The stack our engineers use on this kind of work every week.

  • AWAWS KMS
  • HAHashiCorp Vault
  • HSHSM
  • MPMPC wallets
  • 3D3-D Secure
  • OAOAuth 2.0
  • WEWebAuthn
  • OWOWASP ASVS
  • SNSnyk
  • Burp Suite
  • FIFireblocks
  • Cloudflare
Outcomes

What you can expect

Every engagement is tied to measurable business results, not just deliverables.

01

Lower exposure to loss

Layered controls make theft harder and limit damage when one control fails. Smaller blast radius.

02

Smoother partner reviews

Documented architecture and testing evidence help when banks, processors and enterprise customers ask about security. Evidence ready for reviews.

03

Customer trust

Visible protections such as step-up authentication and clear alerts give users confidence to keep funds on your platform.

Wallet & Payment safety by Speqto Technologies

Digital wallets are indeed convenient, but can you be sure of its safety? Can you make sure that your credit card and bank account information is protected while using it? Of course, it will all be safe with the Wallet & Payment Safety by Speqto Technologies.

What Is Wallet & Payment Safety?

Digital wallet is a much faster, easier, and extremely convenient mode of payment that can be used over conventional means of swiping plastic cards. Even though many raise concerns over the safety and security of digital wallets, it is proven that digital wallet is a safer method of payment compared to plastic cards or using fiat money. This is because these digital wallets are being designed with all the required security measures in place.

Simply put, a digital wallet is an online payment tool that is based on software and exists on either a web browser or a mobile app. These wallets would store your credit, debit, and gift cards, and cryptocurrencies; provide access to bank payments and crypto wallets, and other digital cash payments. With the use of digital wallets, you will be able to conduct transactions within a matter of a few seconds.

Advantage of Wallet & Payment Safety Services

Easier to Manage

Eliminates the requirement to carry cash or credit or debit cards with you.

Enhanced Shopping Experience

If you are using a digital wallet, you will be able to use the self-check-out facilities available at shopping malls without queuing up in front of the cash counter.

Tokenization

Robust safety solutions such as tokenization are adopted by digital wallets to increase the efficiency of the security provided to the wallet.

Biometric Authentication

Hence digital wallets use biometric authentication the threat of fraud is reduced to a greater extent.

Increased Acceptance

Today, payments via digital wallets have received global acceptance.

Contactless Transaction

You will be able to easily complete the transaction without any contact with the use of digital wallets.

Extra Security through Two-factor Authentication

This makes sure that the validity of the user is authenticated twice, which will mitigate the chance of fraud.

Viable Option for Unbanked & Underbanked

Digital wallets are a perfect substitute for people who are trying to avoid the chaotic process of transaction processing via banks.

SPEQTO’s Wallet & Payment Safety Approach

We consider user safety as our top priority. Speqto Technologies has introduced advanced security features in our Wallet & Payment Safety application that will guarantee a seamless user experience.

Fund Storage in Segregated Accounts

Speqto’s Wallet and Payment Safety approach is designed in such a way that customers’ funds are stored in segregated accounts that allow users to have

Regular KYC & AML Checks

Speqto conducts KYC (Know Your Customer) and AML (Anti-money Laundering) checks regularly in order to avoid threats and protect its customers while

Heavily Encoded Wallet Information

All confidential information in the wallet is highly encoded so that it will act as a barrier to hacking attacks and it would also make it nearly impossible for an unauthorized party

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FAQ

Wallet & Payment Safety FAQs

Straight answers on cost, timelines, IP ownership, team setup and how we work. Cannot find yours? Ask a solutions architect directly.

How should a crypto wallet store private keys?

Options include on-device secure enclaves for self-custody, MPC to split key material, and HSMs with cold storage for custodial services. The right choice depends on who bears risk and how users recover access. Recovery design matters equally.

Does our payment app need PCI DSS compliance?

If you store, process or transmit card data, yes, to varying degrees. Using hosted fields or tokenization from a provider greatly reduces scope. Your acquirer and a qualified assessor confirm the level that applies. Scope is confirmed in writing.

How do you detect fraud in real time?

By scoring each transaction on velocity, amount, geography, device and behavior against rules and models, then allowing, challenging or holding it. Review queues and feedback from confirmed cases keep the scoring accurate. Humans review borderline cases.

Is a security audit enough?

No. An audit captures one moment. You also need secure development habits, dependency updates, monitoring and incident plans. We treat audits as a checkpoint within continuous practice. Ongoing assurance matters more than one test. Ongoing assurance matters more than a single report.

Client reviews

Rated 5.0/5 by clients on Clutch

Independent, verified reviews from founders and technology leaders we have worked with. Read them in full on each platform.

“What I found most impressive about Speqto Technologies was their profound technical depth.”

Andrea Daminelli Founder & Co-CEO, Daze Milan, Italy · Blockchain development for an EV charging company
Verified review on Clutch

“The project management throughout this complex undertaking was exceptionally proactive and structured.”

Rostyslav Burylo CEO, Lynksen Lisbon, Portugal · Blockchain development
Verified review on Clutch

“Their ability to translate complex cryptographic concepts into actionable, business-aligned strategies set them apart.”

Oleksandr Sendulskyi Senior Marketing Manager, BINTIME IT Company Ukraine · Blockchain development services
Verified review on Clutch

See all reviews

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