1.

Relying 100% on a single cloud concentrates operational and financial risk. Failures happen - and when they do, they paralyze critical processes (ERP, e-commerce, logistics, finance) and generate loss of revenue, fines and brand wear and tear. brand. Having continuity options outside the same provider is what separates quick interruptions from prolonged crises.

2.

Public cloud SLAs generally offer service credits, not compensation for losses.

In practice, these credits usually cover a tiny fraction of the damage - often not even 5% of the total impact (lost revenue, unproductive hours, contracts, reputation). Resilience strategy is against unavailability and attacks.

3.

High availability (HA) reduces local failures, but business continuity requires going further:

• RTO (time to air) in minutes, not hours.
• RPO (how much data you accept losing) in seconds, not days.
• Plans and runbooks tested for partial and total failure.

4.

Plans that aren't tested don't work under pressure. Include:

• Quarterly failover tests (partial and total).
• Tabletop exercises with technical, legal and business teams.
• Readiness metrics: decision time, runbook execution, restoration success.

5.

Ransomware and attacks require combined layers:

• Prevention: microsegmentation, MFA, hardening, vulnerability management.
• Detection and response: EDR/XDR, SIEM/SOAR, SOC 24×7.
• Recovery: immutable backups (WORM), retention by policies, frequent restoration tests.

6.

• At-rest and in-flight encryption with secure key management.
• Immutability by period to avoid deletion/encryption of backups.
• Integrity validation (behavioral analysis of copies) before restore.
• Retention by layers (operational, tactical and regulatory) for compliance.