The financial crash you are referring to is likely the global financial crisis of 2008, which was triggered by a combination of factors including lax lending standards, subprime mortgage lending, and the subsequent collapse of the housing market. In the years leading up to the crisis, lending standards were indeed quite loose, with many financial institutions offering mortgages to borrowers with little or no documentation of their income or assets. These subprime mortgages were then bundled together and sold as complex financial products, spreading the risk throughout the financial system.
Since the 2008 financial crisis, there have been significant changes in lending standards and regulations to prevent a similar crisis from occurring again. Some of the key changes include:
1) Stricter mortgage regulations
2) Increased oversight and supervision
3) Improved risk assessment
4) Securitization reforms: Securitization
5) Stress testing: Banks and financial institutions
While these measures have generally improved lending standards and reduced the risk of another financial crisis, it's important to note that regulations and practices can vary across countries and financial institutions. It is crucial for regulators to remain vigilant and adapt to evolving market conditions to ensure the stability of the financial system.