Amazon had fired a number of employees after they shared customer email address and phone numbers with a third-party violating of their policies.
No other information related to account was shared.
Source: https://techcrunch.com/2020/01/10/amazon-employees-email-address/
TPRM report: https://scoringcyber.rankiteo.com/company/amazon
"id": "ama21461222",
"linkid": "amazon",
"type": "Data Leak",
"date": "01/2020",
"severity": "50",
"impact": "2",
"explanation": "Attack limited on finance or reputation"