The Hidden Cost of Default Settings: Why ‘Out-of-the-Box’ Isn’t Safe Enough & Tuning is essential
- Cornerstone Cyber

- Aug 14
- 2 min read

Most organisations inherit their tech stack—piecemeal platforms, vendor tools, and default configurations that “just work.”
But here’s the kicker: default settings are built for compatibility, not security.
They’re designed to help systems boot up quickly, not defend your business under pressure. And in most environments, that difference matters more than people realise.
The Danger of Assumed Security
When we talk to new clients, it’s common to hear:
“That was set up by the vendor years ago”
“It’s been working fine, so we haven’t touched it”
“We thought that setting was secure by default”
And that’s the problem.
Default ≠ secure.
Here are some common areas where defaults silently expose organisations to risk:
1. Email Security
Most mail platforms allow legacy protocols (like IMAP and POP3) by default—opening the door to brute force or password-spray attacks.
Unless these are explicitly disabled, attackers can walk right through a door you didn’t know was open.
2. Endpoint Protection
Installing antivirus is not the same as managing it. If alerting isn’t configured, dashboards go unmonitored, and policy baselines are never reviewed, it’s effectively just cosmetic.
You think you’re protected—but nothing’s watching.
3. Firewalls and Routers
Vendors often ship with management interfaces exposed to public networks or default admin credentials unchanged.
Even experienced IT teams can overlook these in the name of “just getting it live.”
The Real Cost of Defaults
When defaults are left unchecked:
Attackers find easy inroads
Logs go silent when things go wrong
Response teams waste time figuring out what’s “supposed” to be there
You lose confidence in the stack you paid for
Worse still, when incidents do happen, most of the damage comes not from a zero-day exploit—but from a completely avoidable misconfiguration.
Final Thought: Simplicity Doesn’t Mean Safety
Default settings are about frictionless deployment—not defence.
If you’ve never reviewed the configuration of your core platforms, the risk isn’t just theoretical—it’s operational.
Cybersecurity starts with visibility, moves through control, and ends in confidence. And that confidence only comes from knowing your systems reflect your intent—not someone else’s guess.
Start with one system. One platform. One audit.
But don’t assume “it’s probably fine.”




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