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Data and computer security | The Guardian

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UK’s state investments agency hit by data breach

Security lapse leaves sensitive information and contact details of 51 government officials exposed for 40 hoursThe public body in charge of the UK’...
Posted on 2 August 2026 | 6:00 am

Hackers steal sensitive data from UK Department for Education and police

Details of parents and staff, including email addresses and phone numbers, are among data taken by cybercriminalsThe Department for Education and a...
Posted on 29 July 2026 | 7:10 pm

Personal and banking details among customer data stolen in Origin Energy hack

Hackers access Australian customers’ names, addresses, dates of birth, phone numbers and some bank account details, company saysFollow our Australi...
Posted on 23 July 2026 | 9:55 am

‘Keys to the kingdom’: hackers who gained access to heart of London transport network jailed

Thalha Jubair, 20, and Owen Flowers, 19, sentenced to five and a half years each for cyber-attack that cost Transport for London £39mThe data of mi...
Posted on 16 July 2026 | 12:01 pm

Australian patients’ medical records could be sold on dark web after clinics’ data breach

‘Malicious actor’ obtains sensitive data including Medicare numbers, treatment details and pathology results in cyber-attack on Partnered HealthFol...
Posted on 16 July 2026 | 5:46 am

AI models capable of devastating attacks on governments and business months away, rare Five Eyes statement warns

Signal agencies in Australia, the US, the UK, New Zealand and Canada sound alarm after Trump blocks foreign nationals from Anthropic’s Fable AI mod...
Posted on 22 June 2026 | 1:00 pm

Readers reply: Experts say we should use passkeys, but can a smartphone pin really be safer than a password?

The long-running series in which readers answer other readers’ questions on subjects ranging from trivial flights of fancy to profound scientific a...
Posted on 14 June 2026 | 1:00 pm

Spyware firm targeted WhatsApp users in defiance of US court order, Meta says

Tech company says it ‘caught and disrupted’ NSO Group’s attempts to access accounts in Jordan and Lebanon A spyware firm has been targeting WhatsA...
Posted on 9 June 2026 | 4:20 pm

Report ‘phone hack’ to police or I will do it for you, Labour chair tells Farage

Anna Turley gives Reform leader 24 hours to report Russian hacking claim in ‘public and national interest’The Labour chair has given Nigel Farage 2...
Posted on 27 May 2026 | 9:00 pm

Nigel Farage’s Russian hack claim ‘without any merit’, former NCSC chief says

Ciaran Martin says Reform UK leader’s allegation over Guardian report on £5m gift ‘entirely unsubstantiated’Nigel Farage’s claim that a Russian hac...
Posted on 25 May 2026 | 3:33 pm

Canvas hack: is it ever a good idea to pay a ransom, and what happens to the data?

Businesses are advised against paying – but many are prepared to deal to protect users’ privacyAfter a week of outages, hundreds of millions of stu...
Posted on 16 May 2026 | 6:00 pm

Developer withdraws plans for Perth datacentre after fierce community opposition

Three-storey GreenSquare datacentre in Hazelmere was to power cloud computing and the acceleration of AIGet our breaking news email, free app or da...
Posted on 15 May 2026 | 8:57 am

Palantir’s access to identifiable NHS England patient data is ‘dangerous’, MPs say

Health service has given US tech firm ‘unlimited access’ to certain data to build integrated platform, according to reportsUK politics live – lates...
Posted on 11 May 2026 | 12:01 pm

How a simple consumer data breach spiralled into a national security crisis in US-South Korea relations

Washington’s focus on online retailer Coupang has led to accusations that the Trump administration is tying issues of national security to domestic...
Posted on 24 April 2026 | 3:24 am

Private health records of half a million Britons offered for sale on Chinese website

Technology minister tells Commons ‘de-identified’ information from UK Biobank advertised for sale on AlibabaThe confidential health records of half...
Posted on 23 April 2026 | 5:33 pm

Rental platform unnecessarily collected the data of millions of Australians, privacy commissioner finds

2Apply’s over-collection of personal information adds to the power of the real estate industry in the competitive rental market, Carly Kind saysFol...
Posted on 22 April 2026 | 3:47 am

Booking.com warns customers of hack that exposed their data

Undisclosed number of names and contact and reservation details accessed in latest cybercrime attemptThe accommodation reservation website Booking....
Posted on 13 April 2026 | 10:57 am

Almost half a million Lloyds customers had personal data exposed in IT glitch

Letter from group published by MPs blames 12 March glitch on software update to its mobile banking appsLloyds Banking Group exposed the personal da...
Posted on 27 March 2026 | 11:53 am

Google warns quantum computers could hack encrypted systems by 2029

Banks, governments and tech providers urged to upgrade security because current systems will soon be obsolete Banks, governments and technology pr...
Posted on 26 March 2026 | 3:22 pm

Crossbench MPs pressure Labor over gas export tax – as it happened

This blog is now closedHundreds of petrol stations across Australia run out of fuel as Albanese inks supply deal with SingaporeSA premier warns One...
Posted on 23 March 2026 | 6:20 am