The issue focused on hackers fighting corruption at tech giants Apple and Microsoft and urged lawmakers to oppose proposals by hackers such as Visa and PayPal that block transactions based on hackers' identities and passwords. Last week the Electronic Frontier Foundation criticized PayPal's blocking software from issuing refunds or refunds after hackers breached its servers and robbed banks of sensitive funds. Visa denied liability for PayPal customers whose identities were compromised by hackers who exploited vulnerabilities in PayPal's banking software. Visa responded by informing PayPal customers who purchased debit cards through PayPal's Payment Gateway website that