After the Biden administration applied sanctions on four Israeli settlers for acting violently toward Palestinians and activists in the West Bank, online fundraisers sprang to their aid. One campaign collected over $140,000 for a settler named Yinon Levi and his unauthorized settler outpost from over 3,000 donors worldwide. Now, those contributions may be putting donors, crowdfunding sites and the financial services firms that process the payments at risk of penalties for violating the U.S. sanctions. Sanctions experts say the order applies to U.S. citizens and companies involved in the campaigns. And it gives the U.S. government authority to blacklist Israeli entities allowing U.S. citizens or companies to violate sanctions.