This is right wing rhetoric meant to convince people that cuts to social programs are needed as a way to make social services solvent, fyi.

Social security is funded by the current tax payers, taxes were raised so that the social security could have some extra money to buy us bonds, allowing them to cash in those bonds later when boomers retire en masse. Eventually the bonds will be gone and social security will be 'insolvent' but this is ok! Social security is always being paid into and social security can be paid out with general funds, or by increased tax rates, or by increasing the cap on SS taxes.

There is not actually any indication that social security is going anywhere other than Republican fear mongering.