For five weeks an Israeli founder has been trying to return a six-figure seed investment in his cybersecurity start-up to Web Summit Ventures (WSV). However, so far, he says there has been “radio silence” from the Irish-based fund.  WSV lists Chris Murphy and Paddy Cosgrave as its two directors and was launched in 2022 to invest in early- to growth-stage companies. According to its most recent Securities and Exchange Commission filings from August 2022, it raised $5.2 million out of a proposed $30 million for the fund.  At the beginning of October, WSV invested in Lasso Security just as the…