Most organisations already have email security in place.
Secure email gateways, spam filters, and sandboxing tools do a good job of blocking the majority of known threats. Commodity phishing, mass spam campaigns, and high volume attacks are largely stopped before they reach users.
On paper, this looks reassuring.
Many legacy email security vendors confidently claim detection rates of 90 to 99 percent.
But this is where the real problem begins.
The most dangerous attacks live in the remaining 1 percent
That final 1 to 10 percent of attacks is not background noise.
It is where the most sophisticated, targeted, and damaging threats exist.
This includes:
- Highly targeted spear phishing emails
- AI generated social engineering attacks
- Business email compromise
- Credential harvesting designed for lateral movement
- Low volume attacks crafted for a specific organisation or individual
These attacks are deliberately designed to avoid detection.
They do not rely on known malware.
They do not reuse infrastructure.
They do not follow predictable patterns.
As a result, they often pass straight through traditional email security and land in inboxes.
These are the attacks that lead to serious breaches.
Why legacy email security struggles with these threats
Traditional email security platforms were built for a different threat landscape.
They rely heavily on:
- Historical indicators
- Known malicious senders and domains
- Static rules and heuristics
- Predictable attacker behaviour
This approach works well when attackers repeat themselves.
Modern attackers do not.
Today’s threats are:
- AI generated and highly personalised
- Context aware and carefully timed
- Sent in very low volumes
- Designed to look legitimate rather than suspicious
From the perspective of a legacy email gateway, these emails often appear clean.
That is why they get through.
The false sense of security
A major risk for organisations is not the absence of email security.
It is the assumption that existing tools are enough.
When detection rates are presented as percentages, it is easy to believe the problem is solved.
But the attacks that cause the most damage are rare, targeted, and opportunistic.
It only takes:
- One convincing email
- One trusted request
- One moment of human error
That is why focusing solely on high level detection statistics can be misleading.
The most important attacks are not the ones you see every day.
They are the ones you do not see coming.
Closing the gap that matters most
This is where StrongestLayer comes in.
StrongestLayer is designed to protect against the small but critical percentage of attacks that traditional email security tools cannot reliably detect.
While StrongestLayer can be deployed as a standalone email security solution, in most environments it is run alongside existing email security.
It is not about forcing a rip and replace.
It is about strengthening what you already have.
By operating in parallel, StrongestLayer focuses specifically on the sophisticated, low volume attacks that sit in the 1 percent gap.
How StrongestLayer detects what others miss
Instead of relying on patterns and reputation, StrongestLayer uses reasoning based AI to analyse:
- Sender intent
- Language manipulation and persuasion techniques
- Behavioural context
- Subtle indicators of deception
This allows it to identify novel attacks that have no prior indicators and no reputation history.
In short, it detects intent rather than indicators.
That is why it is effective against AI driven social engineering and targeted phishing campaigns.
Why this layered approach is now essential
As attackers adopt AI at scale, the gap between traditional email security and real world threats is widening.
Email attacks are becoming:
- More convincing
- More targeted
- Harder to distinguish from legitimate communication
At the same time, organisations face increasing pressure from boards, regulators, and insurers to demonstrate effective controls and reduce breach risk.
A layered approach to email security is no longer optional.
It is a necessary evolution.
A practical way forward
The most effective organisations are no longer asking which single tool can do everything.
They are asking:
- What does our current email security miss
- Where are we most exposed
- How do we close that gap without disruption
Running StrongestLayer alongside existing email security provides a clear answer.
Not by replacing what already works.
But by strengthening it where it matters most.
Final thought
If your email security stops 90 to 99 percent of attacks, that is a good foundation.
But it is the remaining 1 percent that causes the most damage.
That is where breaches begin.
That is where trust is exploited.
That is where organisations get hurt.
Protecting against that gap is where modern email security must focus.
See more about StrongestLayer here and contact us to schedule a demo and recieve pricing.