EBT Dealings

11 June 2010

OpSec Security Group plc

Employee Benefit Trust Dealings

OpSec Security Group plc (the "Company") announces that it was notified on 10 June 2010 that on that day, the OpSec Security Group Employee Benefit Trust (the "Trust") purchased 240,000 ordinary shares of 5 pence each ("Shares") at a price of 24.65 pence per Share.

In addition, the Company was notified on 11 June 2010 that on that day, the Trust purchased 215,000 Shares at a price of 25.0 pence per Share.

The purchases were made in order to cover obligations of the Trust under the Company's employee share schemes.

Following this transaction the Trust now holds 4,949,281 Shares, representing

6.51% of the Company's issued share capital and voting rights.

The Directors of the Company are potential beneficiaries of Shares held in the Trust.

For further information, please contact: