Which procurement fraud scheme involves contracting personell that share information to help a favored bidder formulate a proposal?

The procurement fraud scheme you're referring to is known as "bid rigging" or "collusion." In this scheme, contracting personnel may share confidential information with a favored bidder, allowing that bidder to tailor their proposal to meet the requirements in a way that others cannot. This unfair advantage undermines competition and can lead to inflated costs and subpar services. Ultimately, it violates ethical standards and legal regulations governing procurement processes.