[Insider]

Not so correct, none figured a way to actually crack RSA. Efficient prime factorization algorithm hasn't been found yet. They only way is to bruteforce the key, if you use a long enough key it would take too long. So yes, it is possible to design such algorithm, but as i said it happens very very rarely

Though NSA did make them set the number generator to their own formula.

RSA received $10 million in a deal that set the NSA formula as the default method for number generation in the BSafe software [...] it represented more than a third of the revenue that the relevant division at RSA had taken in during the entire previous
year
—
Reuters,
“
Secret contract tied NSA and security
industry pioneer
”

RSA adopted the algorithm even before NIST approved it. The NSA then cited the early use of Dual Elliptic Curve inside the government to argue successfully for NIST approval
—
Reuters,
“
Secret contract tied NSA and security
industry pioneer
”