A consultancy built on evidence, not assurances
Digital Security Consulting is an independent engineering firm of more than twenty engineers, serving Montreal, the South Shore and clients across Canada and the United States. The work spans cybersecurity, infrastructure, AI, software and mobile engineering, wireless security and crypto — held together by one habit: assume it will fail, and prove the recovery works.
Where the standards come from
Most of what this firm believes was formed in aerospace. Our founder spent more than two decades engineering modern business aircraft avionics — flight control, displays, navigation, communications and integrated modular avionics — including design compliance documentation for configuration changes, software updates and component obsolescence. Those standards are what we hire and train against.
That environment does not let you ship and iterate. You produce evidence, in writing, that an independent reviewer can follow to the same conclusion. You identify failure modes in advance and define what happens when each one occurs.
Then production systems, in public
Alongside that: years building and operating financial technology — a subscription platform, the data pipelines feeding it, and the reporting a business runs on. Ingestion from SFTP drops and vendor APIs, validation, transformation, and numbers that have to be right every day for paying customers.
Aerospace teaches rigour. Running a live subscription platform teaches what rigour costs and where it genuinely pays. Both are necessary. Neither is sufficient alone.
Why the practices overlap
Cybersecurity, infrastructure, AI, software, mobile, wireless and crypto are not separate businesses sharing a website. A backup strategy is a security control. An AI deployment is an access-control problem. A website is an attack surface. Wireless is the part of your network that leaves the building. A crypto loss is almost always an operational security failure rather than a cryptographic one.
Treating them separately is how the gaps between them become the thing that takes you down.
How we work
You talk to the engineers doing the work — there is no account manager and no quiet handoff to juniors after signing. Our bench covers mobile and app, UI/UX, full-stack, AI, infrastructure and cybersecurity, so a project can scale without being handed to strangers. We scope to your actual risk and budget rather than to a fixed package, and when we are not the right fit we say so and point you somewhere better.
Everything is delivered in both French and English, including written documentation and reports.
Operating principles
Evidence over assurance
A backup is not real until you have restored it and timed it. A security posture is not real until you can produce evidence for it.
Assume failure
Identify how it breaks, decide in advance what happens, then demonstrate the response works.
Boring technology
Novelty is a cost paid by whoever maintains the system next. We choose well-supported tools unless there is a specific reason not to.
Security is structural
Least privilege, input validation, secrets handling and dependency hygiene are part of building the thing, not a later audit.
Write down the reasoning
Not just what was built, but why, and what was rejected. That is what lets the next person change it safely.
Leave clients more capable
The goal is that your team understands the system after we leave, not that you need us permanently.
Tell us what is breaking — or what you are trying to build.
You get a senior engineer on the first call, not a salesperson. If we are not the right fit, we will say so and point you somewhere better.
Active incident? Write “URGENT” in your message and we prioritise it.