False statement regarding second law of thermodynamics

It is impossible to construct a machine working in cycles which transforms heat from a lower temperature region to higher temperature region without intervention of any external agency.
 

Heat cannot flow from a colder body to a hotter body on its own

Any spontaneous process taking place in isolated system, $∆$S<O

All spontaneous processes are thermodynamically irreversible and entropy of the universe increases in all spontaneous processes.