数据出站策略与隐私合规（DLP/PII检测）最佳实践

数据出站策略与隐私合规（DLP/PII检测）最佳实践概述对外发送或记录的数据需进行敏感信息检测与脱敏，配合策略门禁与审计，实现隐私合规与防泄漏。PII检测规则const piiPatterns: Record<string, RegExp> = {

email: /\b[\w.%+-]+@[\w.-]+\.[A-Za-z]{2,}\b/g,

phone: /\b\+?\d{1,3}[-\s]?\d{6,14}\b/g,

idcard: /\b\d{15}(\d{2}[0-9X])?\b/g

}

function detectPII(text: string): string[] {

const hits: string[] = []

for (const [name, re] of Object.entries(piiPatterns)) {

if (re.test(text)) hits.push(name)

}

return hits

}

脱敏与替换function maskPII(text: string): string {

return text

.replace(piiPatterns.email, '***@***')

.replace(piiPatterns.phone, '********')

.replace(piiPatterns.idcard, '****************')

}

出站策略门禁type OutboundPolicy = { allowPII: boolean; destinations: string[] }

function gateOutbound(payload: string, policy: OutboundPolicy, dest: string): { allowed: boolean; sanitized: string } {

if (!policy.destinations.includes(dest)) return { allowed: false, sanitized: '' }

const hits = detectPII(payload)

if (hits.length > 0 && !policy.allowPII) {

return { allowed: false, sanitized: maskPII(payload) }

}

return { allowed: true, sanitized: payload }

}

审计与留存type OutboundAudit = { dest: string; blocked: boolean; categories: string[]; timestamp: string }

function auditOutbound(dest: string, blocked: boolean, categories: string[]): OutboundAudit {

return { dest, blocked, categories, timestamp: new Date().toISOString() }

}

运维要点将PII检测与脱敏前置到出站与日志环节明确目的地白名单与是否允许PII的策略出站审计入库并留存以满足合规要求通过检测、脱敏与门禁，可在通用Web场景下实现数据出站的隐私合规治理。