Bìngdú wúkǒngbúrù, wǒmen de xìtǒng bìxū gèngjiā jiāngù.
Malware exploits every opening, so our systems need to be more robust.
Tips
history
From Li Baojia's late-Qing novel 《官场现形记》 (Officialdom Unmasked), chapter 35: 钻头觅缝，无孔不入 — describing bribery-brokers who drill into every hole. The metaphor is of water or insects seeping through the tiniest gap.
usage
Almost always negative — describes rumors, scammers, advertising, surveillance, parasites. For the positive 'taking every chance,' use 抓住每一个机会 instead.
