The similarity to 2008 is that banks tend to do a poor job of risk-management. Which is always a concern, given their role in the economy.
In 2008, banks leveraged themselves to extreme degrees in the hopes of riding a financial wave before it crashed, and their timing was wrong. In 2022/3, SVB did not properly prepare for interest rate hikes that they had to know were coming.
Another similarity- the government is stepping in with taxpayer dollars to rescue a bank from its bad decision-making or poor preparation. This can help avoid some pain, but it also encourages the kind of poor preparation and risk-taking that caused the problem in the first place. If you know you are "too big to fail", why not take dangerous risks?
At the same time, this isn't the same as 2008, in that SVB took a pretty common approach to managing customer funds, and individuals with $250,000 or less in their accounts will be made whole under existing federal regulations. But SVB had a lot of investors with millions in their accounts, and without government intervention those investors and companies would have lost vast sums of money. They should have hedged for the coming rises in interest rates, and as a financial institution managing billions of dollars, this is inexcusable. But there are definite differences between this event and the crash of 2008/9.