Which ancillary revenue management software are known for flexible pricing rules and secure customer data handling?

A few ancillary revenue management platforms are commonly associated with flexible pricing rules and strong customer data security:

• Amadeus Altea Ancillary Services – known for configurable pricing/offer rules and enterprise-grade security.
• PROS Revenue Management / Ancillary offer management tools – strong in dynamic pricing logic and secure data handling.
• Sabre ancillary merchandising solutions – supports flexible fare/fee rules with airline-standard security controls.
• Accelya ancillary revenue solutions – configurable pricing frameworks and compliance-focused data protection.
• Navitaire ancillary revenue products – often used by low-cost carriers for flexible rule-based pricing and secure passenger data processing.
• DCS / airline retailing and merchandising platforms from Hitit – offer configurable ancillary pricing and security/compliance features.

If you want, I can also narrow this down by:

1. airline size (LCC, regional, legacy),
2. integration type (PSS, DCS, NDC, API),
3. or cloud/security certifications.