Pentest vs Vulnerability Scan vs Bug Bounty vs Red Team
Vulnerability scan, penetration test, bug bounty or red team: what each answers, how often, indicative Canadian costs and the maturity each one requires.
Facts verified : October 2026This comparison is not sponsored.
Our recommendation for your situation
15-workstation accounting firm in Mississauga with no particular outside requirement
Vulnerability scan
Monthly internal and external scans followed by patching cover most of the ground at low cost. Add an external penetration test when a client or insurer asks for one.
Online store in Québec City taking card payments on its own site
Penetration test
Depending on the applicable PCI DSS questionnaire, yearly penetration tests may be required, on top of quarterly external scans by an Approved Scanning Vendor (ASV).
Montréal SaaS company with a development team that ships fixes fast
Bug bounty program
Once regular penetration tests and a published disclosure policy are in place, a private program adds ongoing coverage of the application.
Side-by-side comparison
Criterion
Vulnerability scan
Penetration test
Bug bounty program
Red team exercise
Question it answers
Which known flaws are present?
Can an attacker exploit our flaws?
Can researchers find what we missed?
Would we detect a real attack?
Manual exploitation
No, automated
Yes
Yes, by researchers
Yes, through full scenarios
Typical frequency
At least quarterly, often monthly or continuous
Yearly and after any significant change
Continuous
One-off
Scope
Broad: every known asset
Defined in writing before the test
Defined by the program rules
Objectives to reach rather than an inventory
False positives
Common, need validating
Weeded out by the tester
Uneven-quality reports to triage
Findings proven by the scenario
Tests detection and response
No
Not the main goal
No
Yes
Required by PCI DSS 4.0.1
Yes, depending on SAQ: internal and external (ASV) scans at least every three months (11.3)
Yes, depending on SAQ: internal and external tests at least every 12 months (11.4)
No
No
Legal framework
Authorization from the system owner
Written authorization and rules of engagement
Program rules and a safe harbour clause
Written authorization and detailed rules of engagement
Indicative cost
Lowest of the four
A few thousand to several tens of thousands of dollars (CA$) depending on scope
Variable: platform fees + bounties
On request; generally higher than a penetration test
An automated tool compares your systems against a database of known flaws, without exploiting them.
Best for
Every small business, continuously, to catch missing patches and weak configurations.
Pricing
Annual software licence or recurring managed service; for example, Nessus Professional is listed at US$4,790 per year (official site, October 2026), not counting analysis time
Qualified testers try to break through your defences with an attacker's techniques, within a scope agreed in writing.
Best for
Businesses that need to prove their security to a client, an insurer or under PCI DSS.
Pricing
Canadian vendors publish very wide ranges, from a few thousand to several tens of thousands of dollars depending on scope (for example, Packetlabs, August 2026: about CA$5,000 to $45,000, figures it describes as “illustrative”); retesting is often billed separately
Strengths
Shows real exploitability and weeds out false positives
Prioritized report with remediation advice
Recognized by compliance frameworks (e.g., PCI DSS requirement 11.4)
A realistic, objective-driven attack simulation that also tests detection and response.
Best for
Mature organizations that have fixed the basics and have monitoring in place (SOC or MDR).
Pricing
On request; generally higher than a penetration test, depending on scope and duration
Strengths
Measures real detection and response capability
Tests end-to-end scenarios the way a real adversary would
Exposes process gaps, not just technical ones
Limitations
Expensive and lengthy
Of little use if the basics aren't in place
Doesn't inventory every vulnerability
Your insurer asks whether you run "scans." A client wants a "security test." One consultant pitches a bug bounty, another a red team. The four terms sound alike, but they answer different questions and come with very different price tags.
For how these differ from a cybersecurity audit, see our article on security audit vs pentest vs vulnerability scan. Here, we compare the four ways of actively hunting for flaws in your systems.
Our method
We compare approaches, not vendors. Definitions and recommendations come from NIST, the UK's NCSC, OWASP and the text of PCI DSS 4.0.1, reviewed in October 2026.
Criteria: the question each approach answers, depth, frequency, scope, false positives, detection, PCI DSS requirements, legal framework, cost and maturity required.
Prices are indicative market ranges published by vendors, not our rates.
A vulnerability scan is an automated tool. It probes your systems, compares what it finds against a database of known flaws and produces a list. It doesn't try to get in.
A penetration test goes further. The UK's NCSC defines it as a way of gaining assurance in a system's security by attempting to breach its defences, using the same tools and techniques an adversary might. The NCSC adds an important nuance: a test shouldn't be your main way of finding flaws, but rather a check on your vulnerability management, much as an external audit checks the work of an internal finance team.
A bug bounty invites outside researchers to report flaws in exchange for a reward, usually money, often through a specialized platform.
A red team exercise simulates a realistic attack on the organization's operations to assess its overall security capabilities, as NIST defines it. The aim isn't to find every flaw, but to see whether a targeted attack would go unnoticed.
These approaches stack rather than replace one another.
Start with scans. They're basic hygiene. PCI DSS 4.0.1, for instance, requires internal and external scans at least every three months, with external scans run by an Approved Scanning Vendor (ASV). A monthly scan followed by patching already solves a large share of problems.
Then a penetration test. It confirms what an attacker can actually do. The NCSC notes that a test can only validate the absence of known issues on the day it's run, and that a year or more often passes between tests, which is why scanning in between matters. PCI DSS requires internal and external tests at least every 12 months and after any significant change. The cost of a penetration test depends mostly on scope.
Then, possibly, a bug bounty. OWASP is blunt about the downsides: plenty of junk reports and false positives, a budget that can climb if flaws are plentiful, researchers who sometimes stray out of scope, and difficulty telling legitimate testing from a real attack. It recommends bounties only for organizations that already have a mature disclosure process.
Finally, a red team. It only makes sense if someone is watching your alerts. Without monitoring, the exercise will mostly confirm that nobody is.
A penetration test or red team exercise requires written authorization from the system owner: without it, access can be an offence under the Criminal Code (s. 342.1). The engagement letter sets out the scope, dates, permitted techniques and emergency contacts. For a bug bounty, the program's published rules, with a safe harbour clause, govern what researchers may do; OWASP advises getting legal advice before launching one.
If you accept credit cards, the PCI DSS questionnaire that applies to you determines what's mandatory; our article on PCI DSS 4.0.1 for small businesses helps sort it out.
Nothing regular in place yet? Start with monthly internal and external scans and a process for applying patches.
A client, insurer or PCI DSS wants proof? A yearly penetration test, plus one after each major change, with a retest of the fixes.
Running a web application or SaaS product, with a team that fixes quickly? A disclosure policy first, then a private bug bounty program.
You have a SOC or MDR service and solid basics? A red team exercise will measure whether it all holds together.
For most Canadian small businesses, the winning combination stays the same: regular scans and a targeted penetration test at least once a year.
Frequently asked questions
Can a vulnerability scan replace a penetration test?+
No. A scan finds known flaws without exploiting them and produces false positives. A penetration test checks what an attacker can actually do by chaining flaws together. They complement each other: scans keep your hygiene up all year, and the test periodically confirms your vulnerability management works.
Does a penetration test require written authorization?+
Yes. Accessing a computer system without authorization can be an offence under the Criminal Code (s. 342.1). The engagement letter should state the scope, dates, permitted techniques and emergency contacts. If your systems are hosted, also check your hosting or cloud provider's rules.
Can we launch a bug bounty without a disclosure policy?+
It's not recommended. OWASP advises keeping bounty programs for organizations that already have a mature vulnerability disclosure process, staff to triage reports and a set budget. Start by publishing a disclosure policy and a secure way for people to report a flaw to you.
Does a small business need a red team exercise?+
Rarely at first. A red team exercise measures your ability to detect and stop an attack; without monitoring in place, it will mostly confirm that nobody is watching. It becomes worthwhile once scans, patching and penetration tests are routine and a team is watching the alerts.