What is the definition of usurious banks, where does usury lie in their financial dealings, and is it permissible to work in them as a cashier?

Usurious banks are not committed to ethics. They prosecute the delayed debtor and charge him late fees. They may imprison the insolvent and declare him bankrupt to seize his assets. They rely on re-lending money at an interest rate, which leads to depositors becoming accustomed to passivity, threatening human potential, or directing funds to projects that are not beneficial to society. Therefore, it is not permissible to deal with them or work for them due to the impermissibility of cooperating in sin, as Allah Almighty says: "And do not cooperate in sin and aggression," and "O you who have believed, fear Allah and give up what remains [due to you] of interest." The Prophet, peace and blessings be upon him, warned against consuming usury and cursed its consumer, its payer, its witnesses, and its scribe.