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Google warns quantum computers could hack encrypted systems by 2029

about 19 hours ago
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Banks, governments and technology providers need to be prepared for quantum computer hackers capable of breaking most existing encryption systems by 2029, Google has warned.The tech company said in a blogpost that quantum computers would pose a “significant threat to current cryptographic standards” before the end of the decade and urged other companies to follow its lead.The company, owned by Alphabet, said: “The encryption currently used to keep your information confidential and secure could easily be broken by a large-scale quantum computer in coming years.”As it stands, quantum computers – which can rapidly carry out complex tasks – are a nascent technology with great potential and significant obstacles to being widely usable.Google, Microsoft and universities across the UK and the US are in the midst of building systems that harness the physics of quantum mechanics to perform extremely sophisticated mathematical calculations.

Most of these systems are prohibitively difficult to build, requiring, for example, massive amounts of helium to cool quantum systems to near-absolute zero temperatures, or weeks of work aligning lasers.Those that are working at the moment are too small to perform the tasks that most excite the scientific community.Constructing a very powerful quantum computer – with hundreds of thousands or even millions of stable qubits, or quantum bits – will require overcoming physical and technological challenges to keep those qubits stable, given the inherently fragile nature of quantum systems.Google said: “We’ve adjusted our threat model to prioritise post-quantum cryptography migration for authentication services – an important component of online security and digital signature migrations.We recommend that other engineering teams follow suit.

”Leonie Mueck, formerly the chief product officer of Riverlane, a Cambridge-based quantum startup, said Google’s statement did not necessarily suggest there would definitely be a working quantum computer capable of breaking encryption by 2029,In fact, most timelines for a cryptographically relevant quantum computer – that is, one powerful enough to break encryption – range from the 2030s to the 2050s,But Mueck said the prospect was close enough that governments were already preparing for the eventuality that data stored to today’s encryption standards would be exposed when the technology sufficiently advances,“We’re basically seeing in the intelligence community already that for probably more than a decade they’ve been thinking about this threat,” Mueck said,Last year the UK’s cybersecurity agency, the National Cyber Security Centre, urged organisations to guard their systems against quantum hackers by 2035.

Google’s timeline suggests engineering teams across the technology industry should consider measures to protect sensitive data by migrating to more advanced encryption systems now.Certain kinds of attacks predicated on the future availability of quantum decryption – “store now, decrypt later” – may currently be being deployed across the field.Mueck said: “National security documents from 1920 are not relevant today.But stuff from 10 years ago is much more relevant, and should not get into the wrong hands in the future.You need to have classified documents that are classified today in a way that a quantum computer in 10 years won’t be able to decrypt them.

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foodSee all
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Four knockout bakes and tips from the master: Edd Kimber’s recipes for cooking with chocolate

From a white chocolate cheesecake tart and flourless chocolate cake to double chocolate olive oil and marbled matcha cookies, explore chocolate’s endless versatilityChocolate is a truly magical ingredient. Not only is it a powerhouse of flavour, it also pairs beautifully with other ingredients to make something incredible. Chocolate isn’t one note, mind; from the heady richness of an intense dark chocolate to the nostalgic creaminess of milk chocolate and the often maligned simplicity of white chocolate, it can be the star of the show or simply the supporting act. Chocolate can do it all.This is my go-to dinner party dessert

about 22 hours ago
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Sauces, spreads, sprinkles – and cocktail in a can: whose fridge is this?

Amba sauce “I’m very jar orientated; a lot of my cooking is about combining big flavours. I’m also a sucker for a sour ingredient, and this Iraqi pickled mango condiment is really sour – more so than tamarind. If I’m garnishing a dish with tahini, then I’ll use amba to cut through the richness, otherwise I’ll use it in lieu of citrus.”Stem ginger in syrup “My grandpa always gave me this when I was a kid, and I thought it was disgusting. However, now it’s essential; I often make a (chopped) stem ginger and spring onion salsa – it’s sweet and spicy

1 day ago
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Rachel Roddy’s recipe for potato, aubergine and herb tortino alla fiorentina

The sky is the same shade as old Tupperware, our tortoise appears to have gone back into hibernation, the flat upstairs has builders in, but the kitchen smells gorgeous, thanks to this week’s recipe. It is one of the variations suggested by Anna Gosetti Della Salda for her aubergine and egg tortino alla fiorentina in the Tuscany chapter of Le Ricette Regionali Italiane, an indispensable book that I would save from a fire. The addition of potato to the aubergine makes it an even more substantial, velvet-like and better-tasting dish, I think: a layered vegetable bake crossed with a frittata that fancies itself as having a touch of baked eggs (although don’t expect any puffing up).Instead of the aubergine, you could use artichoke hearts (trimmed and cut into slim wedges), courgettes or cardoon, and, if you fancy, you could also add a crumbled sausage or a handful of diced pancetta. Whatever you use, however, a fundamental stage in terms of both flavour and texture is the initial cooking of the vegetables: frying the potatoes, then covering the pan so they fry-steam into tenderness; the aubergine by simply frying

1 day ago
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How to turn old sourdough into a classic pudding – recipe | Waste not

Bread-and-butter pudding is a zero-waste recipe that has stood the test of time, not least because it’s so practical, comforting and thrifty. Like the best no-waste dishes, it transforms something worthless such as old bread into something truly indulgent. This version is based on Raymond Blanc’s classic, with a few of my own simplifications and adaptations over the years.Most traditional bread-and-butter pudding recipes call for white bread, caster sugar and extra egg yolks, but, unless you’ve got a clear plan for those egg whites, they can very easily end up being wasted. Whole eggs work beautifully in custard, and make very little difference to the richness of the finished pudding; I simply use a touch less milk to compensate

2 days ago
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Fresh start: Hetty Lui McKinnon’s recipes to celebrate spring

Vegetables are in my blood. I grew up surrounded by them; boxes upon boxes scattered around my childhood home, a perk from my father’s job as a wholesale purveyor (of bananas, specifically) at Sydney’s Flemington Markets (now known as Sydney Markets). Our family enjoyed an embarrassment of nature’s riches; an endless supply of succulent Asian greens, rotund cauliflowers, glossy aubergine, perky spring onions, and bulging cabbages that overflowed from crates in and around the kitchen and dining room. We needed to step over trays of stone fruit and cartons of oranges to get to the bathroom. In the summer, I gorged on apricots and cherries until I was sick (true story) – I had no self-control when it came to the fresh stuff

2 days ago
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Kurdish kitchens, baked bean alaska and Mexican soul: the best spring cookbooks for 2026 – review

Nandên: Recipes from my Kurdish Kitchen by Pary BabanBecause the Kurdish people are spread across several national boundaries, their food tends to get lumped in with that of the Turkish, Iranian, Syrian and other communities with which they coexist. Indeed, when Pary Baban opened her first London restaurant she was told by a fellow Kurd she was “brave” to advertise it as Kurdish, given how few people would be familiar with the concept. “If I don’t do it,” she recalls saying then, “and you don’t do it, then who will do it, and when will we put our food on the map?” For those who can’t make it to Nandine (which, like Nandên, means kitchen in Kurdish) in Camberwell to learn from her own hands, this book serves as an admirable guide through a world of slow-cooked lamb and vegetable stews, fluffy breads and cooling yoghurt soups, as well as a wealth of stories from her childhood surrounded by the peaks of Iraqi Kurdistan. Driven out by Saddam Hussein’s government in the 1980s, she and her family fled east into the hills, staying with relatives, farmers, shepherds and foragers, in mountain villages – a journey that ignited Baban’s interest in recording her people’s traditions at a time when it seemed they could easily be lost for good. She began scribbling down their recipes in notebooks: and almost 40 years of cooking later, Nandên is the very fine end result

2 days ago
politicsSee all
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Reform busy firefighting in Scotland but may yet set Holyrood’s politics ablaze

about 16 hours ago
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UK politics: Trump says UK’s aircraft carriers are just ‘toys’ – as it happened

about 16 hours ago
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Tories are convinced McSweeney’s phone is the only one in London not to have been stolen | John Crace

about 17 hours ago
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Orgreave inquiry formally under way into policing during miners’ strike

about 20 hours ago
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Starmer tells Travelodge boss to engage with MPs over sexual assault case

about 21 hours ago
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‘Give the guy a chance’: Wes Streeting says he does not want Starmer ousted

1 day ago