Thomas Jefferson’s Monticello was hit by a ransomware attack this week that knocked out the historic home’s electronic systems. The attack was discovered Tuesday and since then Monticello has not been able to use its computer or phone systems. The home is still open for tours, but everything must be done manually, including ticket sales and credit card transactions, according to Ann Taylor, executive vice president of the Thomas Jefferson Foundation. “We’re working with a variety of IT experts to address the issue and restore services as soon as...