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The Assurance Desk
Ciaran Martin, Bluesky profile photo

"PHP2Shell summary: it’s log4shell again but the media and politicians are paying attention"

Ciaran Martin, Bluesky post excerpt

Expert views: is Black October a turning point for cyber risk?

A critical PHP flaw made this a loud week, so it helps to separate the noise from the longer trend.

On 21 October 2026 the NCSC asked UK organisations to take immediate action on a critical PHP flaw. Ciaran Martin and Joe Tidy reacted on Bluesky. Martin said the media and politicians are paying attention, and Tidy said the warnings themselves were unusual.

Ciaran Martin: more attention, a normal tempo

Ciaran Martin compares this PHP flaw with an earlier one, and says the difference is that the media and politicians are paying attention. That is Martin's view of the coverage, not a measure of the harm.

A few days before the PHP alert, Ciaran Martin wrote on LinkedIn about the attacks then in the news. Martin called their number a normal figure, and wrote that the tempo of high profile cyber attacks is nothing out of the ordinary. Martin credits the points to Marcus Hutchins.

Martin agrees that things are changing. But Martin writes that the idea of a major turning point, based on a handful of incidents, is not the case.

PHP2Shell summary: it’s log4shell again but the media and politicians are paying attention

Joe Tidy: the warnings themselves were unusual

Joe Tidy wrote on Bluesky that the PHP issue could be an internet melter or a nothing burger. Tidy shared the warnings just in case.

Joe Tidy said it was unusual to see all the cyber authorities saying patch or take offline. Tidy asked whether that was a first.

Pretty crazy and unusual to see all the cyber authorities saying 'patch or take offline'. Is that a first?

The NCSC's figures show a longer rise in serious attacks

One loud week is not a trend, but the NCSC's yearly figures are. It handled 204 nationally significant cyber attacks against the UK in the 12 months to August 2025, up from 89 the year before. That is an average of four every week.

The total number of incidents it handled stayed similar, at 429. What rose was the share that was serious. The NCSC links part of the rise to a small number of attackers exploiting software flaws.

The NCSC also says its data does not show every UK incident, because many businesses choose not to report.

Nationally significant incidents handled by the NCSC

incidents

  • 2022 to 2023 62
  • 2023 to 2024 89
  • 2024 to 2025 204
Chart values
Nationally significant incidents handled by the NCSC
Measureincidents
2022 to 202362
2023 to 202489
2024 to 2025204
The incidents the NCSC rates nationally significant, September to August each year. The NCSC says its figures do not show every UK incident.

What firms and people can do this week

For a firm, the NCSC's PHP advice is the starting point. Find every system that runs PHP, starting with those that face the internet. Where the temporary fixes cannot go on quickly, consider taking the system offline until it is fixed.

Many firms rely on suppliers for their websites and software. The NCSC asks organisations to watch for updates from those suppliers too. A firm that cannot check a system for signs of attack can get help from an NCSC-assured Cyber Incident Response provider.

For each person, the NCSC's top tips for staying secure online still apply.

The NCSC's top tips for staying secure online

  • Protect your email with a strong and separate password
  • Install the latest software and app updates
  • Turn on 2-step verification
  • Use a password manager to create and remember passwords
  • Back up your most important data
  • Use three random words to make a password hard to crack
The NCSC's general advice for individuals and families. It is not advice for one system.

Deana Burke's list for non-developers matches most NCSC tips

On Instagram, Deana Burke posted a list of things people can do as non-developers. Deana Burke's list is a personal view, not official guidance.

Much of Deana Burke's list matches the NCSC's tips: 2-step verification, software updates and a password manager.

Deana Burke goes further than the NCSC's 2-step verification tip. Burke prefers an authenticator app or a passkey to text message codes where possible.

Deana Burke also adds a step the NCSC's top tips page does not list. Ask your phone carrier for a port-out PIN or number lock, to stop SIM swapping.

The NCSC's tips add one step that Burke's list leaves out: back up your most important data.

Deana Burke's list beside the NCSC's top tips

Deana Burke on Instagram

  • Two-factor authentication for everything, by app or passkey
  • A port-out PIN or number lock from your phone carrier
  • Automatic updates for phone, laptop and browser
  • A password manager, and no reused passwords

NCSC top tips

  • Turn on 2-step verification
  • Install the latest software and app updates
  • Use a password manager
  • A strong and separate password for your email
  • Back up your most important data
Burke's list is one person's view for non-developers. The NCSC's tips are its general advice for individuals and families.

Call your phone carrier and ask for a port-out PIN or number lock. It stops people from hijacking your number (SIM swapping my NIGHTMARE).

What to watch next

For most readers, the useful signal is the regulator's advice, not the volume of posts.

The NCSC's view is that the best defence is to make your organisation as hard a target as possible. For sole traders and small organisations, its Cyber Action Toolkit covers the basic measures.

Read next

Sources

  1. Ciaran Martin on Bluesky, @ciaranm.bsky.social on Bluesky, checked 23 October 2026
  2. Joe Tidy on Bluesky, @joetidy.bsky.social on Bluesky, checked 23 October 2026
  3. NCSC, NCSC Annual Review 2025, Chapter 01: Countering the cyber threat, Incident management, checked 23 October 2026
  4. NCSC, Top tips for staying secure online, checked 23 October 2026
  5. Deana Burke on Instagram, checked 23 October 2026
  6. NCSC, Critical security issue affecting PHP, checked 23 October 2026
  7. Ciaran Martin on LinkedIn, checked 23 October 2026
  8. NCSC, UK experiencing four 'nationally significant' cyber attacks every week, checked 23 October 2026

This is an independent editorial guide, not legal advice.