So, basically, withholding information is not the same thing as lying, but depending on the situation, you will have to decide whether it is better to withhold the information or not.
HCH may refer to: Hampton Court House, an independent school in Surrey, UK. Hexachlorocyclohexane, a group of chemical compounds. Holmes Chapel railway station (National Rail station code), in Cheshire, England.
ACH is an electronic network that processes very large volumes of transactions in the United States. The network through which these payments are made is highly reliable and efficient, and it is used for a variety of purposes.