Banks can not afford increasing expenditure of the old technology anymore they will have to adapt to the change.Talking about technology and banking, Blockchain, will disrupt the financial domain with certainty. Much has been discussed, debated and discussed about this distributed ledger, both online and offline. So this innovative technology does not require a special introduction at this time. Calling it 'annoying' is a disparaging statement. To understand what a blockchain is, look at bitcoin or cryptocurrency. It has achieved many 'never heard' scenarios in the financial domain. Since technology has been introduced in the banking world, experts are always struggling to create safe and secure means of transactions. A person must go through a third party application or an intermediary or regulatory body to transfer money. But here is the digital currency - completely unfocused - and has broken all conventional banking laws. Today, a person can send money to anyone in the world immediately without having to go through the hassle of what I experienced. It has happened in many parts of the world. You can transfer money via WeChat, Whatsapp, and even Facebook Messenger right now.
Believe it or not, blockchain is a breakthrough technology that can be applied to your domain-name. From agriculture, aviation to supply chains, finance, and the food industry, blockchains are everywhere.
A lot of organizations around the world are already experimenting with this technology. Major financial organizations such as the SBI Holdings, Goldman Sachs and Citi group have already invested in blockchain. Back home, the State Bank of India (SBI) has grand plans in place to use blockchain for a number of processes, including the KYC system. South Indian Bank seamlessly carried out an international transaction using this technology. ICICI, YES Bank, Bank of Baroda, Axis Bank and Kotak Mahindra are some of the few banks that have hopped on to the blockchain bandwagon. While some banks are experimenting with this digital ledger and achieving impressive results, some financial institutions are gearing up to reform and redefine huge chunks of their banking processes.

Good for them and their customers!
As far as my bank is concerned, I recall reading this article which showed that out of Fortune500 in last 50 years, 84% of them are dead today. In the next 10 years, I am happy to predict just a few banks will remain in Fortune 500. Most financial institutions will have either absorbed blockchain tightly OR they will be gone.
Banking is nowhere close to being dead. If, and a big IF at that, blockchain is even able to disrupt the traditional banking industry, it will only be to the extent that traditional banks have adopted blockchain technology. The banks aren't going away, the banking industry isn't going away, and how either functions on a technical level isn't going to change this fact. Don't forget that every single crypto is too volatile to keep any significant value in for more than an hour, and you see exactly the type of folly expecting such an instrument to displace traditional banking. Perhaps the only thing crypto actually has a chance to replace wholesale is remittance or value transfer services, but expecting it to actually replace functional banking is far more than crypto can handle.
As far as my bank is concerned, I recall reading this article which showed that out of Fortune500 in last 50 years, 84% of them are dead today. In the next 10 years, I am happy to predict just a few banks will remain in Fortune 500. Most financial institutions will have either absorbed blockchain tightly OR they will be gone.
Most companies fall out of the Fortune 500 because they're bought by other companies in the Fortune 500. They're not dead, they're subsidiaries of other companies now. I 100% guarantee no banks currently in the Fortune 100 will fall out of the Fortune 500 because of blockchain technology in the next 10 years. Even if that were going to happen, it doesn't happen that fast. Banks lower than the top 100 could fall out due to being replaced by newer companies and because those lower spots aren't very big by banking standards, but it also will not because of blockchain.