Skip to main content

Nationwide customers 'bank cards suddenly stopped working' after technical glitch

xxx

FURIOUS Nationwide customers had their payments declined and were locked out of their accounts when the bank's system went down yesterday.

From Nationwide customers 'bank cards suddenly stopped working' after technical glitch

The system went down. But what if there was no system to go down? Imagine that each ATM is a node in a shared ledger. Suppose a bank has a million customers, and each customer’s transaction record is 1Kb. A balance, last few transactions, that sort of thing. No need to store the whole transaction history in the ledger. That’s 1Gb. Maybe 10Gb for all of the bank customers in the UK. I have a flash drive in my bag with 128Gb on it and it cost like $50. Now, when someone draws money from an ATM the ledger is updated over a few minutes at all of the other ATMs (remember, ATMs are doing nothing most of the time). If an ATM goes down, so what? Just go to another one. When an ATM comes back, the ledger will update.

Comments

Post a Comment

Popular posts from this blog

We could fix mobile security, you know. We don't, but we could

Earlier in the week I blogged about mobile banking security , and I said that in design terms it is best to assume that the internet is in the hands of your enemies. In case you think I was exaggerating… The thieves also provided “free” wireless connections in public places to secretly mine users’ personal information. From Gone in minutes: Chinese cybertheft gangs mine smartphones for bank card data | South China Morning Post Personally, I always use an SSL VPN when connected by wifi (even at home!) but I doubt that most people would ever go to this trouble or take the time to configure a VPN and such like. Anyway, the point is that the internet isn’t secure. And actually SMS isn’t much better, which is why it shouldn’t really be used for securing anything as important as home banking. The report also described how gangs stole mobile security codes – which banks automatically send to card holders’ registered mobile phones to verify online transactions – by using either a Trojan...
Post a Comment
Read more

Financial Cryptography: Corda Day - a new force

Forum friend Ian Grigg, who I always take very seriously indeed on any such topic, wrote about Corda on his blog and concluded with a powerful statement. Bitcoin told the users it wanted an unstoppable currency - sure, works for a small group but not for the mass market. Ethereum told their users they need an unstoppable machine - which worked how spectacularly with the DAO? Not. What. We. Wanted. Corda is the only game in town because it's the only one that asked the users. It's that simple. From Financial Cryptography: Corda Day - a new force xxx It seems to me, however, what Ian is pointing to as the greatest strength of their approach is also the greatest weakness. A staple feature of unimaginative management consultants presentations about innovation is some variation on the statement by Henry Ford that if you had asked users what they wanted, they would have asked for faster horses coupled with some variation on the statement by Steve jobs that it was pointless ask...
Post a Comment
Read more

Barclays slated after CIO takes a year to open a bank account

xxx The rigorous KYC procedures at US banks the New Jersey-based crime ring created more than 7,000 fake identities to get tens of thousands of credit cards From  Woman Gets 3 Years for Role in $200M Credit Card Fraud Scam - ABC News xxx xxxx Barclays slated after CIO takes a year to open a bank account : "An adviser to a new charitable incorporated organisation that spent more than a year trying to open a bank account has blasted Barclays for its onerous demands and disproportionate due diligence." xxx In a recent survey for VocaLink, some two-thirds of respondents said that they saw value in the establishment of a central KYC utility. They are wrong. We don’t need a central KYC utility, we need a federated reputation infrastructure. Or, to put it another way, a financial services passport ( as I mentioned earlier in the year ).
Post a Comment
Read more