WHITE PAPER

Your SEG Is Missing Phishing Attacks, Here’s the Proof

Traditional Secure Email Gateways (SEGs) fail to stop an average of 67.5 phishing attacks per 100 mailboxes every month. These gaps leave organizations exposed to credential theft, vendor scams, and advanced phishing threats.

This research-backed report, based on data from 1,921 customer environments, reveals exactly how SEGs are failing, why modern phishing attacks bypass traditional defenses, and what security teams need to do next.

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Download the Hidden Gaps in SEG Protection White Paper

What's In the report?

We catch the phish others miss, now we have the data to prove it.

This research reveals how many phishing emails slip past Secure Email Gateways (SEGs) like Barracuda, Proofpoint, Mimecast, and Cisco IronPort—leaving organizations exposed to credential theft, vendor scams, and business email compromise.

  • Across 1,921 customer environments, SEGs missed an average of 67.5 phishing emails per 100 mailboxes every month.
  • Smaller orgs are hit the hardest, those with under 100 mailboxes experience phishing attack rates up to 20x higher than larger orgs.
  • Some SEGs struggle more than others, for example: Barracuda missed 751 attacks per 100 mailboxes in orgs with fewer than 100 users, while other vendors performed better in certain size ranges.

Curious how your SEG stacks up? Try our SEG Missed Attacks Calculator to estimate your risk based on your SEG provider and organization size.

67.5

Phishing Emails Missed

Per 100 Mailboxes every month

1,921

Environments Analyzed

Barracuda, Proofpoint, Mimecast, Cisco IronPort

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What's In The Report?

We catch the phish others miss, now we have the data to prove it.

This research reveals how many phishing emails slip past Secure Email Gateways (SEGs) like Barracuda, Proofpoint, Mimecast, and Cisco IronPort—leaving organizations exposed to credential theft, vendor scams, and business email compromise.

  • Across 1,921 customer environments, SEGs missed an average of 67.5 phishing emails per 100 mailboxes every month.

  • Smaller orgs are hit the hardest, those with under 100 mailboxes experience phishing attack rates up to 20x higher than larger orgs.

  • Some SEGs struggle more than others, for example: Barracuda missed 751 attacks per 100 mailboxes in orgs with fewer than 100 users, while other vendors performed better in certain size ranges.

 

missed-email-attacks-by-company-size

 

Curious how your SEG stacks up?

Try our SEG Missed Attacks Calculator to estimate your risk based on your SEG provider and organization size.

 

What Is IRONSCALES?

Our platform protects your employee's inboxes from advanced phishing attacks that others miss, with the only technology that combines AI and human insights. Our platform is quick to deploy and  dead simple to manage (so you get instant protection).

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Advanced Threat Protection

Protect Better
Block advanced phishing and BEC attacks (and never seen before threats) with our Adaptive AI—dynamically sharpened by real-world user insights and a community of over 20,000 IRONSCALES threat hunters.
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SOC Automation

Simplify Operations
Slash the time your team spends remediating email incidents from 30 minutes per incident to 30 seconds. Our Adaptive AI scans every email for malicious indicators. When it finds a threat, it doesn’t just block it, it automatically finds and remediates all others like it in your environment.
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SIMULATIONS & TRAINING

Empower your Org

Triple the email security awareness of your workforce and transform your employees into a crucial line of phishing defense. We make it dead simple to sharpen your employees' understanding of real-world threats with:

  • Phishing simulation testing
  • Security awareness training (SAT)
  • Dynamic email banners
  • ...and a GPT-powered chat assistant
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"We adopted Ironscales a year ago, and it’s been amazing how they’ve helped reduce the time between identifying a potential threat and resolving it. We used to dedicate hours to manually going through reported emails and following up on them. Ironscales has helped us to cut the number of man hours down by 95%."
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Augustine Boateng Interim Chief Information Officer, City of Memphis
“IRONSCALES is catching 80-90% of phishing attempts and other miscellaneous emails that shouldn’t be coming through. It’s performing as advertised, so when we do need to remediate, the process works perfectly. And our people are finally ‘getting’ security'.”
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JIM WOLFF Director of Technology, Paramount School District
“IRONSCALES is the product that has saved our bacon multiple times now. From an administration point, I needed that simplicity. "
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Walter Novak Director of IT, Valley ENT

Case Studies

"The ability to provide real-time feedback on both positive and negative performance has proven very effective. It’s a wake-up call for our employees.”
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