This makes sense. These keys were designed as project identifiers for billing, and can be further restricted with (bypassable) controls like HTTP referer allow-listing. They were not designed as authentication credentials.
Филолог заявил о массовой отмене обращения на «вы» с большой буквы09:36
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Цены на нефть взлетели до максимума за полгода17:55
Rachel Stonehouse,BBC West Investigationsand