The UAE's Landmark Group is investigating a cyber incident involving “unauthorised access” to its Shukran loyalty programme, it said on Wednesday. The customer information involved includes names, contact details and dates of birth, the Dubai-based retail and hospitality conglomerate said. However, debit and credit card details were not compromised, as those are not stored on its system, Landmark Group said. Shukran points, which are redeemed for perks and discounts, are also unaffected.