A method, comprising: identifying, by a packet data convergence protocol entity of a network device of a communication network, an integrity verification failure for at least one protocol data unit received by the network device from a cell group, wherein the cell group is configured to a user equipment; and based on identifying the integrity verification failure, sending, by the packet data convergence protocol entity of the network device to a radio resource control layer at the network device, information comprising: i) an indication of the integrity verification failure, and ii) an indication of the cell group, wherein the at least one protocol data unit comprises at least one packet data convergence protocol data unit, and wherein the at least one packet data convergence protocol data unit is received from the cell group using at least one bearer; the method further comprising: determining by the network device at least one condition associated with the at least one bearer, wherein the sending the information comprising the indication of the integrity verification failure and the indication of the cell group is based on the determined at least one condition, wherein the at least one condition comprises a condition that the at least one packet data convergence protocol data unit was received from a split bearer; and the method further comprising: determining, by the radio resource control layer, whether the at least one protocol data unit was received over a master cell group or a secondary cell group, and when it is determined that the at least one protocol data unit was received from a master cell group, initiating a radio resource control connection re-establishment procedure, and when it is determined that the at least one protocol data unit was received from a secondary cell group, initiating a secondary cell group failure information procedure. identifying, by a packet data convergence protocol entity of a network device of a communication network, an integrity verification failure for at least one protocol data unit received by the network device from a cell group, wherein the cell group is configured to a user equipment; and based on identifying the integrity verification failure, sending, by the packet data convergence protocol entity of the network device to a radio resource control layer at the network device, information comprising: i) an indication of the integrity verification failure, and ii) an indication of the cell group, wherein the at least one protocol data unit comprises at least one packet data convergence protocol data unit, and wherein the at least one packet data convergence protocol data unit is received from the cell group using at least one bearer; the method further comprising: determining by the network device at least one condition associated with the at least one bearer, wherein the sending the information comprising the indication of the integrity verification failure and the indication of the cell group is based on the determined at least one condition, wherein the at least one condition comprises a condition that the at least one packet data convergence protocol data unit was received from a split bearer; and the method further comprising: determining, by the radio resource control layer, whether the at least one protocol data unit was received over a master cell group or a secondary cell group, and when it is determined that the at least one protocol data unit was received from a master cell group, initiating a radio resource control connection re-establishment procedure, and when it is determined that the at least one protocol data unit was received from a secondary cell group, initiating a secondary cell group failure information procedure. determining, by the radio resource control layer, whether the at least one protocol data unit was received over a master cell group or a secondary cell group, and when it is determined that the at least one protocol data unit was received from a master cell group, initiating a radio resource control connection re-establishment procedure, and when it is determined that the at least one protocol data unit was received from a secondary cell group, initiating a secondary cell group failure information procedure.